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123100131312132 = 22313789103405847
BaseRepresentation
bin11011111111010101111011…
…100110010100001000000100
3121010212020221210210000000120
4123333111323212110020010
5112113333032103442012
61113451230345541540
734633456003434042
oct3377257346241004
9533766853700016
10123100131312132
1136250521a03807
1211981768aa48b0
13538c3a5a240a0
142258114609392
15e371b48c158c
hex6ff57b994204

123100131312132 has 24 divisors (see below), whose sum is σ = 309328535092416. Its totient is φ = 37876963480608.

The previous prime is 123100131312121. The next prime is 123100131312133. The reversal of 123100131312132 is 231213131001321.

It is not an unprimeable number, because it can be changed into a prime (123100131312133) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 394551702768 + ... + 394551703079.

It is an arithmetic number, because the mean of its divisors is an integer number (12888688962184).

Almost surely, 2123100131312132 is an apocalyptic number.

123100131312132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123100131312132 is an abundant number, since it is smaller than the sum of its proper divisors (186228403780284).

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

123100131312132 is a wasteful number, since it uses less digits than its factorization.

123100131312132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 789103405867 (or 789103405865 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 123100131312132 its reverse (231213131001321), we get a palindrome (354313262313453).

The spelling of 123100131312132 in words is "one hundred twenty-three trillion, one hundred billion, one hundred thirty-one million, three hundred twelve thousand, one hundred thirty-two".

Divisors: 1 2 3 4 6 12 13 26 39 52 78 156 789103405847 1578206811694 2367310217541 3156413623388 4734620435082 9469240870164 10258344276011 20516688552022 30775032828033 41033377104044 61550065656066 123100131312132