20032528931 has 2 divisors, whose sum is σ = 20032528932. Its totient is φ = 20032528930.

The previous prime is 20032528909. The next prime is 20032528973. The reversal of 20032528931 is 13982523002.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20032528931 is a prime.

It is a super-2 number, since 2×20032528931² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20032528891 and 20032528900.

It is not a weakly prime, because it can be changed into another prime (20032578931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10016264465 + 10016264466.

It is an arithmetic number, because the mean of its divisors is an integer number (10016264466).

Almost surely, 2^20032528931 is an apocalyptic number.

20032528931 is a deficient number, since it is larger than the sum of its proper divisors (1).

20032528931 is an equidigital number, since it uses as much as digits as its factorization.

20032528931 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 25920, while the sum is 35.

The spelling of 20032528931 in words is "twenty billion, thirty-two million, five hundred twenty-eight thousand, nine hundred thirty-one".