20312203112331 has 16 divisors (see below), whose sum is σ = 29716546791456. Its totient is φ = 12263971689216.

The previous prime is 20312203112317. The next prime is 20312203112431. The reversal of 20312203112331 is 13321130221302.

It is not a de Polignac number, because 20312203112331 - 2¹⁸ = 20312202850187 is a prime.

It is a super-2 number, since 2×20312203112331² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20312203112431) 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, 4913448130 + ... + 4913452263.

It is an arithmetic number, because the mean of its divisors is an integer number (1857284174466).

Almost surely, 2^{20312203112331} is an apocalyptic number.

20312203112331 is a deficient number, since it is larger than the sum of its proper divisors (9404343679125).

20312203112331 is a wasteful number, since it uses less digits than its factorization.

20312203112331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9826900462.

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 20312203112331 its reverse (13321130221302), we get a palindrome (33633333333633).

The spelling of 20312203112331 in words is "twenty trillion, three hundred twelve billion, two hundred three million, one hundred twelve thousand, three hundred thirty-one".