123232013031 has 16 divisors (see below), whose sum is σ = 174935805408. Its totient is φ = 76894848000.

The previous prime is 123232013027. The next prime is 123232013071. The reversal of 123232013031 is 130310232321.

It is not a de Polignac number, because 123232013031 - 2² = 123232013027 is a prime.

It is a super-2 number, since 2×123232013031² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 123232012989 and 123232013007.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123232013071) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6665670 + ... + 6684131.

It is an arithmetic number, because the mean of its divisors is an integer number (10933487838).

Almost surely, 2^123232013031 is an apocalyptic number.

123232013031 is a deficient number, since it is larger than the sum of its proper divisors (51703792377).

123232013031 is a wasteful number, since it uses less digits than its factorization.

123232013031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13350002.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123232013031 its reverse (130310232321), we get a palindrome (253542245352).

The spelling of 123232013031 in words is "one hundred twenty-three billion, two hundred thirty-two million, thirteen thousand, thirty-one".