20232131313 has 16 divisors (see below), whose sum is σ = 27554881536. Its totient is φ = 13198833360.

The previous prime is 20232131267. The next prime is 20232131333. The reversal of 20232131313 is 31313123202.

It is not a de Polignac number, because 20232131313 - 2¹² = 20232127217 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 20232131313.

It is not an unprimeable number, because it can be changed into a prime (20232131333) 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, 1306848 + ... + 1322238.

It is an arithmetic number, because the mean of its divisors is an integer number (1722180096).

Almost surely, 2^20232131313 is an apocalyptic number.

It is an amenable number.

20232131313 is a deficient number, since it is larger than the sum of its proper divisors (7322750223).

20232131313 is a wasteful number, since it uses less digits than its factorization.

20232131313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24764.

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

Adding to 20232131313 its reverse (31313123202), we get a palindrome (51545254515).

The spelling of 20232131313 in words is "twenty billion, two hundred thirty-two million, one hundred thirty-one thousand, three hundred thirteen".