20324520031 has 2 divisors, whose sum is σ = 20324520032. Its totient is φ = 20324520030.

The previous prime is 20324520023. The next prime is 20324520043. The reversal of 20324520031 is 13002542302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20324520031 - 2³ = 20324520023 is a prime.

It is a super-2 number, since 2×20324520031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20324519984 and 20324520011.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20324520131) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10162260015 + 10162260016.

It is an arithmetic number, because the mean of its divisors is an integer number (10162260016).

Almost surely, 2^20324520031 is an apocalyptic number.

20324520031 is a deficient number, since it is larger than the sum of its proper divisors (1).

20324520031 is an equidigital number, since it uses as much as digits as its factorization.

20324520031 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1440, while the sum is 22.

The spelling of 20324520031 in words is "twenty billion, three hundred twenty-four million, five hundred twenty thousand, thirty-one".