30722128815233 has 2 divisors, whose sum is σ = 30722128815234. Its totient is φ = 30722128815232.

The previous prime is 30722128815227. The next prime is 30722128815263. The reversal of 30722128815233 is 33251882122703.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 30271695888784 + 450432926449 = 5501972^2 + 671143^2 .

It is a cyclic number.

It is not a de Polignac number, because 30722128815233 - 2²⁰ = 30722127766657 is a prime.

It is not a weakly prime, because it can be changed into another prime (30722128815223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15361064407616 + 15361064407617.

It is an arithmetic number, because the mean of its divisors is an integer number (15361064407617).

Almost surely, 2^{30722128815233} is an apocalyptic number.

It is an amenable number.

30722128815233 is a deficient number, since it is larger than the sum of its proper divisors (1).

30722128815233 is an equidigital number, since it uses as much as digits as its factorization.

30722128815233 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 967680, while the sum is 47.

The spelling of 30722128815233 in words is "thirty trillion, seven hundred twenty-two billion, one hundred twenty-eight million, eight hundred fifteen thousand, two hundred thirty-three".