325020515320421 has 2 divisors, whose sum is σ = 325020515320422. Its totient is φ = 325020515320420.

The previous prime is 325020515320363. The next prime is 325020515320451. The reversal of 325020515320421 is 124023515020523.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 289117481937025 + 35903033383396 = 17003455^2 + 5991914^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-325020515320421 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (325020515320451) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 162510257660210 + 162510257660211.

It is an arithmetic number, because the mean of its divisors is an integer number (162510257660211).

Almost surely, 2^{325020515320421} is an apocalyptic number.

It is an amenable number.

325020515320421 is a deficient number, since it is larger than the sum of its proper divisors (1).

325020515320421 is an equidigital number, since it uses as much as digits as its factorization.

325020515320421 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72000, while the sum is 35.

The spelling of 325020515320421 in words is "three hundred twenty-five trillion, twenty billion, five hundred fifteen million, three hundred twenty thousand, four hundred twenty-one".