123311312313 has 32 divisors (see below), whose sum is σ = 188255508480. Its totient is φ = 70331543040.

The previous prime is 123311312261. The next prime is 123311312317. The reversal of 123311312313 is 313213113321.

It is not a de Polignac number, because 123311312313 - 2¹⁴ = 123311295929 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (123311312317) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 40548073 + ... + 40551113.

It is an arithmetic number, because the mean of its divisors is an integer number (5882984640).

Almost surely, 2^123311312313 is an apocalyptic number.

It is an amenable number.

123311312313 is a deficient number, since it is larger than the sum of its proper divisors (64944196167).

123311312313 is a wasteful number, since it uses less digits than its factorization.

123311312313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6037.

The product of its digits is 972, while the sum is 24.

Adding to 123311312313 its reverse (313213113321), we get a palindrome (436524425634).

The spelling of 123311312313 in words is "one hundred twenty-three billion, three hundred eleven million, three hundred twelve thousand, three hundred thirteen".