123110312132 has 24 divisors (see below), whose sum is σ = 216009302880. Its totient is φ = 61393550400.

The previous prime is 123110312131. The next prime is 123110312177. The reversal of 123110312132 is 231213011321.

It is a happy number.

It is a super-2 number, since 2×123110312132² (a number of 23 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (123110312131) by changing a digit.

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, 2798507 + ... + 2842157.

It is an arithmetic number, because the mean of its divisors is an integer number (9000387620).

Almost surely, 2^123110312132 is an apocalyptic number.

It is an amenable number.

123110312132 is a deficient number, since it is larger than the sum of its proper divisors (92898990748).

123110312132 is a wasteful number, since it uses less digits than its factorization.

123110312132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45491 (or 45489 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 123110312132 its reverse (231213011321), we get a palindrome (354323323453).

The spelling of 123110312132 in words is "one hundred twenty-three billion, one hundred ten million, three hundred twelve thousand, one hundred thirty-two".