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101112131212 = 22316171321589
BaseRepresentation
bin101111000101011000…
…0001010111010001100
3100122222200022110110121
41132022300022322030
53124034201144322
6114241131514324
710206436635361
oct1361260127214
9318880273417
10101112131212
1139977186804
121771a2b89a4
1396c504a051
144c72a3a468
15296bbb9ec7
hex178ac0ae8c

101112131212 has 24 divisors (see below), whose sum is σ = 182950346880. Its totient is φ = 48845892480.

The previous prime is 101112131207. The next prime is 101112131291. The reversal of 101112131212 is 212131211101.

It is a happy number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 584287 + ... + 737302.

It is an arithmetic number, because the mean of its divisors is an integer number (7622931120).

Almost surely, 2101112131212 is an apocalyptic number.

It is an amenable number.

101112131212 is a deficient number, since it is larger than the sum of its proper divisors (81838215668).

101112131212 is a wasteful number, since it uses less digits than its factorization.

101112131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1322241 (or 1322239 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 101112131212 its reverse (212131211101), we get a palindrome (313243342313).

It can be divided in two parts, 101112 and 131212, that added together give a square (232324 = 4822).

The spelling of 101112131212 in words is "one hundred one billion, one hundred twelve million, one hundred thirty-one thousand, two hundred twelve".

Divisors: 1 2 4 31 62 124 617 1234 2468 19127 38254 76508 1321589 2643178 5286356 40969259 81938518 163877036 815420413 1630840826 3261681652 25278032803 50556065606 101112131212