120691125887 has 2 divisors, whose sum is σ = 120691125888. Its totient is φ = 120691125886.

The previous prime is 120691125883. The next prime is 120691125931. The reversal of 120691125887 is 788521196021.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 120691125887 - 2² = 120691125883 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (120691125883) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 60345562943 + 60345562944.

It is an arithmetic number, because the mean of its divisors is an integer number (60345562944).

Almost surely, 2^120691125887 is an apocalyptic number.

120691125887 is a deficient number, since it is larger than the sum of its proper divisors (1).

120691125887 is an equidigital number, since it uses as much as digits as its factorization.

120691125887 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 483840, while the sum is 50.

The spelling of 120691125887 in words is "one hundred twenty billion, six hundred ninety-one million, one hundred twenty-five thousand, eight hundred eighty-seven".