123031110132 has 72 divisors (see below), whose sum is σ = 355613731200. Its totient is φ = 35132902848.

The previous prime is 123031110119. The next prime is 123031110197. The reversal of 123031110132 is 231011130321.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 343594 + ... + 603422.

It is an arithmetic number, because the mean of its divisors is an integer number (4939079600).

Almost surely, 2^123031110132 is an apocalyptic number.

123031110132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123031110132 is an abundant number, since it is smaller than the sum of its proper divisors (232582621068).

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

123031110132 is a wasteful number, since it uses less digits than its factorization.

123031110132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261725 (or 261720 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 123031110132 its reverse (231011130321), we get a palindrome (354042240453).

The spelling of 123031110132 in words is "one hundred twenty-three billion, thirty-one million, one hundred ten thousand, one hundred thirty-two".