20312203120231 has 64 divisors (see below), whose sum is σ = 23689602662400. Its totient is φ = 17231837286400.

The previous prime is 20312203120219. The next prime is 20312203120241. The reversal of 20312203120231 is 13202130221302.

It is not a de Polignac number, because 20312203120231 - 2¹³ = 20312203112039 is a prime.

It is a super-2 number, since 2×20312203120231² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312203120201) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 8025365436 + ... + 8025367966.

It is an arithmetic number, because the mean of its divisors is an integer number (370150041600).

Almost surely, 2^{20312203120231} is an apocalyptic number.

20312203120231 is a deficient number, since it is larger than the sum of its proper divisors (3377399542169).

20312203120231 is a wasteful number, since it uses less digits than its factorization.

20312203120231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4500.

The product of its (nonzero) digits is 864, while the sum is 22.

Adding to 20312203120231 its reverse (13202130221302), we get a palindrome (33514333341533).

The spelling of 20312203120231 in words is "twenty trillion, three hundred twelve billion, two hundred three million, one hundred twenty thousand, two hundred thirty-one".