30071921652901 has 2 divisors, whose sum is σ = 30071921652902. Its totient is φ = 30071921652900.

The previous prime is 30071921652859. The next prime is 30071921652931. The reversal of 30071921652901 is 10925612917003.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 21380922850401 + 8690998802500 = 4623951^2 + 2948050^2 .

It is a cyclic number.

It is not a de Polignac number, because 30071921652901 - 2⁹ = 30071921652389 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (30071921652931) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15035960826450 + 15035960826451.

It is an arithmetic number, because the mean of its divisors is an integer number (15035960826451).

Almost surely, 2^{30071921652901} is an apocalyptic number.

It is an amenable number.

30071921652901 is a deficient number, since it is larger than the sum of its proper divisors (1).

30071921652901 is an equidigital number, since it uses as much as digits as its factorization.

30071921652901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 204120, while the sum is 46.

The spelling of 30071921652901 in words is "thirty trillion, seventy-one billion, nine hundred twenty-one million, six hundred fifty-two thousand, nine hundred one".