120979863 has 12 divisors (see below), whose sum is σ = 176353320. Its totient is φ = 79912656.

The previous prime is 120979813. The next prime is 120979883. The reversal of 120979863 is 368979021.

It is not a de Polignac number, because 120979863 - 2¹³ = 120971671 is a prime.

It is a super-2 number, since 2×120979863² = 29272254502997538, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120979813) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 60681 + ... + 62642.

It is an arithmetic number, because the mean of its divisors is an integer number (14696110).

Almost surely, 2^120979863 is an apocalyptic number.

120979863 is a deficient number, since it is larger than the sum of its proper divisors (55373457).

120979863 is a wasteful number, since it uses less digits than its factorization.

120979863 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 123438 (or 123435 counting only the distinct ones).

The product of its (nonzero) digits is 163296, while the sum is 45.

The square root of 120979863 is about 10999.0846437329. The cubic root of 120979863 is about 494.5813049616.

The spelling of 120979863 in words is "one hundred twenty million, nine hundred seventy-nine thousand, eight hundred sixty-three".