30720622133 has 2 divisors, whose sum is σ = 30720622134. Its totient is φ = 30720622132.

The previous prime is 30720622109. The next prime is 30720622151. The reversal of 30720622133 is 33122602703.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 30311854609 + 408767524 = 174103^2 + 20218^2 .

It is a cyclic number.

It is not a de Polignac number, because 30720622133 - 2⁶ = 30720622069 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 30720622096 and 30720622105.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30720622103) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15360311066 + 15360311067.

It is an arithmetic number, because the mean of its divisors is an integer number (15360311067).

Almost surely, 2^30720622133 is an apocalyptic number.

It is an amenable number.

30720622133 is a deficient number, since it is larger than the sum of its proper divisors (1).

30720622133 is an equidigital number, since it uses as much as digits as its factorization.

30720622133 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9072, while the sum is 29.

The spelling of 30720622133 in words is "thirty billion, seven hundred twenty million, six hundred twenty-two thousand, one hundred thirty-three".