23201321313 has 16 divisors (see below), whose sum is σ = 31179500352. Its totient is φ = 15345408000.

The previous prime is 23201321303. The next prime is 23201321317. The reversal of 23201321313 is 31312310232.

It is not a de Polignac number, because 23201321313 - 2⁵ = 23201321281 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 23201321313.

It is not an unprimeable number, because it can be changed into a prime (23201321317) 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, 2495233 + ... + 2504513.

It is an arithmetic number, because the mean of its divisors is an integer number (1948718772).

Almost surely, 2^23201321313 is an apocalyptic number.

It is an amenable number.

23201321313 is a deficient number, since it is larger than the sum of its proper divisors (7978179039).

23201321313 is a wasteful number, since it uses less digits than its factorization.

23201321313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15776.

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

Adding to 23201321313 its reverse (31312310232), we get a palindrome (54513631545).

The spelling of 23201321313 in words is "twenty-three billion, two hundred one million, three hundred twenty-one thousand, three hundred thirteen".