23131030313 has 8 divisors (see below), whose sum is σ = 23481968040. Its totient is φ = 22782115840.

The previous prime is 23131030309. The next prime is 23131030343. The reversal of 23131030313 is 31303013132.

It can be written as a sum of positive squares in 4 ways, for example, as 5798517904 + 17332512409 = 76148^2 + 131653^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 23131030313 - 2² = 23131030309 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (23131030303) 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, 482768 + ... + 528513.

It is an arithmetic number, because the mean of its divisors is an integer number (2935246005).

Almost surely, 2^23131030313 is an apocalyptic number.

It is an amenable number.

23131030313 is a deficient number, since it is larger than the sum of its proper divisors (350937727).

23131030313 is a wasteful number, since it uses less digits than its factorization.

23131030313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1011627.

The product of its (nonzero) digits is 486, while the sum is 20.

Adding to 23131030313 its reverse (31303013132), we get a palindrome (54434043445).

The spelling of 23131030313 in words is "twenty-three billion, one hundred thirty-one million, thirty thousand, three hundred thirteen".