120181011986 has 24 divisors (see below), whose sum is σ = 210990155760. Its totient is φ = 51190152552.

The previous prime is 120181011971. The next prime is 120181011991. The reversal of 120181011986 is 689110181021.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 3745796 + ... + 3777743.

It is an arithmetic number, because the mean of its divisors is an integer number (8791256490).

Almost surely, 2^120181011986 is an apocalyptic number.

120181011986 is a deficient number, since it is larger than the sum of its proper divisors (90809143774).

120181011986 is a wasteful number, since it uses less digits than its factorization.

120181011986 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7523718 (or 7523711 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 38.

The spelling of 120181011986 in words is "one hundred twenty billion, one hundred eighty-one million, eleven thousand, nine hundred eighty-six".