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101131132312 = 23717166963649
BaseRepresentation
bin101111000101111100…
…0101001110110011000
3100200001000001211002001
41132023320221312120
53124104032213222
6114243051050344
710210060304230
oct1361370516630
9320030054061
10101131132312
11399869845a1
12177247409b4
1396c8c708c2
144c75384cc0
15296d6bee27
hex178be29d98

101131132312 has 64 divisors (see below), whose sum is σ = 229598280000. Its totient is φ = 40767307776.

The previous prime is 101131132309. The next prime is 101131132313. The reversal of 101131132312 is 213231131101.

It is a self number, because there is not a number n which added to its sum of digits gives 101131132312.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (101131132313) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1557064 + ... + 1620712.

It is an arithmetic number, because the mean of its divisors is an integer number (3587473125).

Almost surely, 2101131132312 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 101131132312, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (114799140000).

101131132312 is an abundant number, since it is smaller than the sum of its proper divisors (128467147688).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

101131132312 is a wasteful number, since it uses less digits than its factorization.

101131132312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65348 (or 65344 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 19.

Adding to 101131132312 its reverse (213231131101), we get a palindrome (314362263413).

The spelling of 101131132312 in words is "one hundred one billion, one hundred thirty-one million, one hundred thirty-two thousand, three hundred twelve".

Divisors: 1 2 4 7 8 14 17 28 34 56 68 119 136 238 476 952 1669 3338 6676 11683 13352 23366 28373 46732 56746 63649 93464 113492 127298 198611 226984 254596 397222 445543 509192 794444 891086 1082033 1588888 1782172 2164066 3564344 4328132 7574231 8656264 15148462 30296924 60593848 106230181 212460362 424920724 743611267 849841448 1487222534 1805913077 2974445068 3611826154 5948890136 7223652308 12641391539 14447304616 25282783078 50565566156 101131132312