123130131132 has 48 divisors (see below), whose sum is σ = 289284371712. Its totient is φ = 40760563200.

The previous prime is 123130131127. The next prime is 123130131203. The reversal of 123130131132 is 231131031321.

It is a happy number.

It is a super-2 number, since 2×123130131132² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123130131099 and 123130131108.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9330643 + ... + 9343829.

It is an arithmetic number, because the mean of its divisors is an integer number (6026757744).

Almost surely, 2^123130131132 is an apocalyptic number.

123130131132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123130131132 is an abundant number, since it is smaller than the sum of its proper divisors (166154240580).

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

123130131132 is a wasteful number, since it uses less digits than its factorization.

123130131132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18498 (or 18496 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 123130131132 its reverse (231131031321), we get a palindrome (354261162453).

The spelling of 123130131132 in words is "one hundred twenty-three billion, one hundred thirty million, one hundred thirty-one thousand, one hundred thirty-two".