32131000997 has 2 divisors, whose sum is σ = 32131000998. Its totient is φ = 32131000996.

The previous prime is 32131000973. The next prime is 32131001009. The reversal of 32131000997 is 79900013123.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 26660031841 + 5470969156 = 163279^2 + 73966^2 .

It is a cyclic number.

It is not a de Polignac number, because 32131000997 - 2¹⁶ = 32130935461 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (32131000907) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 16065500498 + 16065500499.

It is an arithmetic number, because the mean of its divisors is an integer number (16065500499).

Almost surely, 2^32131000997 is an apocalyptic number.

It is an amenable number.

32131000997 is a deficient number, since it is larger than the sum of its proper divisors (1).

32131000997 is an equidigital number, since it uses as much as digits as its factorization.

32131000997 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 10206, while the sum is 35.

The spelling of 32131000997 in words is "thirty-two billion, one hundred thirty-one million, nine hundred ninety-seven", and thus it is an aban number.