20468823131 has 2 divisors, whose sum is σ = 20468823132. Its totient is φ = 20468823130.

The previous prime is 20468823119. The next prime is 20468823163. The reversal of 20468823131 is 13132886402.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20468823131 - 2³⁴ = 3288953947 is a prime.

It is a super-2 number, since 2×20468823131² (a number of 21 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (20468823931) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10234411565 + 10234411566.

It is an arithmetic number, because the mean of its divisors is an integer number (10234411566).

Almost surely, 2^20468823131 is an apocalyptic number.

20468823131 is a deficient number, since it is larger than the sum of its proper divisors (1).

20468823131 is an equidigital number, since it uses as much as digits as its factorization.

20468823131 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 55296, while the sum is 38.

The spelling of 20468823131 in words is "twenty billion, four hundred sixty-eight million, eight hundred twenty-three thousand, one hundred thirty-one".