20332502431 has 2 divisors, whose sum is σ = 20332502432. Its totient is φ = 20332502430.

The previous prime is 20332502429. The next prime is 20332502453. The reversal of 20332502431 is 13420523302.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 20332502431 - 2¹ = 20332502429 is a prime.

It is a super-2 number, since 2×20332502431² (a number of 21 digits) contains 22 as substring.

Together with 20332502429, it forms a pair of twin primes.

It is a junction number, because it is equal to n+sod(n) for n = 20332502396 and 20332502405.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (20332502461) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10166251215 + 10166251216.

It is an arithmetic number, because the mean of its divisors is an integer number (10166251216).

Almost surely, 2^20332502431 is an apocalyptic number.

20332502431 is a deficient number, since it is larger than the sum of its proper divisors (1).

20332502431 is an equidigital number, since it uses as much as digits as its factorization.

20332502431 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 4320, while the sum is 25.

The spelling of 20332502431 in words is "twenty billion, three hundred thirty-two million, five hundred two thousand, four hundred thirty-one".