120309657971 has 2 divisors, whose sum is σ = 120309657972. Its totient is φ = 120309657970.

The previous prime is 120309657961. The next prime is 120309658003. The reversal of 120309657971 is 179756903021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120309657971 - 2¹⁴ = 120309641587 is a prime.

It is not a weakly prime, because it can be changed into another prime (120309657961) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60154828985 + 60154828986.

It is an arithmetic number, because the mean of its divisors is an integer number (60154828986).

Almost surely, 2^120309657971 is an apocalyptic number.

120309657971 is a deficient number, since it is larger than the sum of its proper divisors (1).

120309657971 is an equidigital number, since it uses as much as digits as its factorization.

120309657971 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 714420, while the sum is 50.

The spelling of 120309657971 in words is "one hundred twenty billion, three hundred nine million, six hundred fifty-seven thousand, nine hundred seventy-one".