23103131212313 has 12 divisors (see below), whose sum is σ = 23289744451428. Its totient is φ = 22917989135520.

The previous prime is 23103131212297. The next prime is 23103131212321. The reversal of 23103131212313 is 31321213130132.

It can be written as a sum of positive squares in 2 ways, for example, as 6188566708489 + 16914564503824 = 2487683^2 + 4112732^2 .

It is not a de Polignac number, because 23103131212313 - 2⁴ = 23103131212297 is a prime.

It is a super-2 number, since 2×23103131212313² (a number of 28 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (23103131212393) 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 11 ways as a sum of consecutive naturals, for example, 22943483 + ... + 23929263.

It is an arithmetic number, because the mean of its divisors is an integer number (1940812037619).

Almost surely, 2^{23103131212313} is an apocalyptic number.

It is an amenable number.

23103131212313 is a deficient number, since it is larger than the sum of its proper divisors (186613239115).

23103131212313 is an equidigital number, since it uses as much as digits as its factorization.

23103131212313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 987272 (or 987133 counting only the distinct ones).

The product of its (nonzero) digits is 1944, while the sum is 26.

Adding to 23103131212313 its reverse (31321213130132), we get a palindrome (54424344342445).

The spelling of 23103131212313 in words is "twenty-three trillion, one hundred three billion, one hundred thirty-one million, two hundred twelve thousand, three hundred thirteen".