120996931 has 4 divisors (see below), whose sum is σ = 131996664. Its totient is φ = 109997200.

The previous prime is 120996929. The next prime is 120996943. The reversal of 120996931 is 139699021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 120996931 - 2¹ = 120996929 is a prime.

It is a super-2 number, since 2×120996931² = 29280514622837522, which contains 22 as substring.

It is a Smith number, since the sum of its digits (40) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120996331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5499850 + ... + 5499871.

It is an arithmetic number, because the mean of its divisors is an integer number (32999166).

Almost surely, 2^120996931 is an apocalyptic number.

120996931 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

120996931 is a deficient number, since it is larger than the sum of its proper divisors (10999733).

120996931 is a wasteful number, since it uses less digits than its factorization.

120996931 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10999732.

The product of its (nonzero) digits is 26244, while the sum is 40.

The square root of 120996931 is about 10999.8604991154. The cubic root of 120996931 is about 494.6045625974.

It can be divided in two parts, 1209969 and 31, that added together give a square (1210000 = 1100²).

The spelling of 120996931 in words is "one hundred twenty million, nine hundred ninety-six thousand, nine hundred thirty-one".