120961074082391 has 16 divisors (see below), whose sum is σ = 129658281475008. Its totient is φ = 112551656025600.

The previous prime is 120961074082357. The next prime is 120961074082423. The reversal of 120961074082391 is 193280470169021.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-120961074082391 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120961074082301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 10483730 + ... + 18757151.

It is an arithmetic number, because the mean of its divisors is an integer number (8103642592188).

Almost surely, 2^{120961074082391} is an apocalyptic number.

120961074082391 is a deficient number, since it is larger than the sum of its proper divisors (8697207392617).

120961074082391 is a wasteful number, since it uses less digits than its factorization.

120961074082391 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29245802.

The product of its (nonzero) digits is 1306368, while the sum is 53.

The spelling of 120961074082391 in words is "one hundred twenty trillion, nine hundred sixty-one billion, seventy-four million, eighty-two thousand, three hundred ninety-one".