120410991 has 12 divisors (see below), whose sum is σ = 174572320. Its totient is φ = 79976160.

The previous prime is 120410989. The next prime is 120411001. The reversal of 120410991 is 199014021.

It is not a de Polignac number, because 120410991 - 2¹ = 120410989 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 (120410921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 22246 + ... + 27123.

Almost surely, 2^120410991 is an apocalyptic number.

120410991 is a deficient number, since it is larger than the sum of its proper divisors (54161329).

120410991 is a wasteful number, since it uses less digits than its factorization.

120410991 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 49646 (or 49643 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 27.

The square root of 120410991 is about 10973.1942022366. The cubic root of 120410991 is about 493.8048793137.

The spelling of 120410991 in words is "one hundred twenty million, four hundred ten thousand, nine hundred ninety-one".