20312303110231 has 64 divisors (see below), whose sum is σ = 24418979020800. Its totient is φ = 16690114022400.

The previous prime is 20312303110199. The next prime is 20312303110237. The reversal of 20312303110231 is 13201130321302.

It is a cyclic number.

It is not a de Polignac number, because 20312303110231 - 2⁵ = 20312303110199 is a prime.

It is a super-2 number, since 2×20312303110231² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312303110237) 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, 344439510 + ... + 344498476.

It is an arithmetic number, because the mean of its divisors is an integer number (381546547200).

Almost surely, 2^{20312303110231} is an apocalyptic number.

20312303110231 is a deficient number, since it is larger than the sum of its proper divisors (4106675910569).

20312303110231 is a wasteful number, since it uses less digits than its factorization.

20312303110231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 59780.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 20312303110231 its reverse (13201130321302), we get a palindrome (33513433431533).

The spelling of 20312303110231 in words is "twenty trillion, three hundred twelve billion, three hundred three million, one hundred ten thousand, two hundred thirty-one".