32021512997 has 2 divisors, whose sum is σ = 32021512998. Its totient is φ = 32021512996.

The previous prime is 32021512981. The next prime is 32021513053. The reversal of 32021512997 is 79921512023.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 31164253156 + 857259841 = 176534^2 + 29279^2 .

It is a cyclic number.

It is not a de Polignac number, because 32021512997 - 2⁴ = 32021512981 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32021512907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16010756498 + 16010756499.

It is an arithmetic number, because the mean of its divisors is an integer number (16010756499).

Almost surely, 2^32021512997 is an apocalyptic number.

It is an amenable number.

32021512997 is a deficient number, since it is larger than the sum of its proper divisors (1).

32021512997 is an equidigital number, since it uses as much as digits as its factorization.

32021512997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 68040, while the sum is 41.

The spelling of 32021512997 in words is "thirty-two billion, twenty-one million, five hundred twelve thousand, nine hundred ninety-seven".