123313210031 has 16 divisors (see below), whose sum is σ = 141660067200. Its totient is φ = 106160479200.

The previous prime is 123313210003. The next prime is 123313210037. The reversal of 123313210031 is 130012313321.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123313210031 is a prime.

It is a super-2 number, since 2×123313210031² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123313209985 and 123313210012.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123313210037) 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, 414461 + ... + 646841.

It is an arithmetic number, because the mean of its divisors is an integer number (8853754200).

Almost surely, 2^123313210031 is an apocalyptic number.

123313210031 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

123313210031 is a deficient number, since it is larger than the sum of its proper divisors (18346857169).

123313210031 is a wasteful number, since it uses less digits than its factorization.

123313210031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 234950.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 123313210031 its reverse (130012313321), we get a palindrome (253325523352).

The spelling of 123313210031 in words is "one hundred twenty-three billion, three hundred thirteen million, two hundred ten thousand, thirty-one".