12311020253 has 16 divisors (see below), whose sum is σ = 14431478400. Its totient is φ = 10283672256.

The previous prime is 12311020219. The next prime is 12311020279. The reversal of 12311020253 is 35202011321.

It is not a de Polignac number, because 12311020253 - 2¹⁰ = 12311019229 is a prime.

It is a super-2 number, since 2×12311020253² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12311020453) 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, 56075 + ... + 166632.

It is an arithmetic number, because the mean of its divisors is an integer number (901967400).

Almost surely, 2^12311020253 is an apocalyptic number.

It is an amenable number.

12311020253 is a deficient number, since it is larger than the sum of its proper divisors (2120458147).

12311020253 is a wasteful number, since it uses less digits than its factorization.

12311020253 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 222916.

The product of its (nonzero) digits is 360, while the sum is 20.

Adding to 12311020253 its reverse (35202011321), we get a palindrome (47513031574).

The spelling of 12311020253 in words is "twelve billion, three hundred eleven million, twenty thousand, two hundred fifty-three".