20334320342131 has 24 divisors (see below), whose sum is σ = 21010472899920. Its totient is φ = 19679229839232.

The previous prime is 20334320342111. The next prime is 20334320342137. The reversal of 20334320342131 is 13124302343302.

It is a happy number.

It is not a de Polignac number, because 20334320342131 - 2²⁵ = 20334286787699 is a prime.

It is a super-2 number, since 2×20334320342131² (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 = 20334320342093 and 20334320342102.

It is not an unprimeable number, because it can be changed into a prime (20334320342137) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 215749725 + ... + 215843953.

It is an arithmetic number, because the mean of its divisors is an integer number (875436370830).

Almost surely, 2^{20334320342131} is an apocalyptic number.

20334320342131 is a deficient number, since it is larger than the sum of its proper divisors (676152557789).

20334320342131 is an equidigital number, since it uses as much as digits as its factorization.

20334320342131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 95143 (or 95106 counting only the distinct ones).

The product of its (nonzero) digits is 31104, while the sum is 31.

Adding to 20334320342131 its reverse (13124302343302), we get a palindrome (33458622685433).

The spelling of 20334320342131 in words is "twenty trillion, three hundred thirty-four billion, three hundred twenty million, three hundred forty-two thousand, one hundred thirty-one".