20312310022131 has 8 divisors (see below), whose sum is σ = 27084801511120. Its totient is φ = 13540679273952.

The previous prime is 20312310022073. The next prime is 20312310022171. The reversal of 20312310022131 is 13122001321302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 20312310022131 - 2²³ = 20312301633523 is a prime.

It is a super-2 number, since 2×20312310022131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20312310022098 and 20312310022107.

It is not an unprimeable number, because it can be changed into a prime (20312310022171) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 215130136 + ... + 215224533.

It is an arithmetic number, because the mean of its divisors is an integer number (3385600188890).

Almost surely, 2^{20312310022131} is an apocalyptic number.

20312310022131 is a deficient number, since it is larger than the sum of its proper divisors (6772491488989).

20312310022131 is a wasteful number, since it uses less digits than its factorization.

20312310022131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 430370405.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 20312310022131 its reverse (13122001321302), we get a palindrome (33434311343433).

The spelling of 20312310022131 in words is "twenty trillion, three hundred twelve billion, three hundred ten million, twenty-two thousand, one hundred thirty-one".