30475721055317 has 2 divisors, whose sum is σ = 30475721055318. Its totient is φ = 30475721055316.

The previous prime is 30475721055179. The next prime is 30475721055343. The reversal of 30475721055317 is 71355012757403.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 29005829118436 + 1469891936881 = 5385706^2 + 1212391^2 .

It is a cyclic number.

It is not a de Polignac number, because 30475721055317 - 2⁸ = 30475721055061 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30475721045317) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15237860527658 + 15237860527659.

It is an arithmetic number, because the mean of its divisors is an integer number (15237860527659).

Almost surely, 2^{30475721055317} is an apocalyptic number.

It is an amenable number.

30475721055317 is a deficient number, since it is larger than the sum of its proper divisors (1).

30475721055317 is an equidigital number, since it uses as much as digits as its factorization.

30475721055317 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 3087000, while the sum is 50.

The spelling of 30475721055317 in words is "thirty trillion, four hundred seventy-five billion, seven hundred twenty-one million, fifty-five thousand, three hundred seventeen".