120031112009 has 4 divisors (see below), whose sum is σ = 122584965504. Its totient is φ = 117477258516.

The previous prime is 120031111973. The next prime is 120031112011. The reversal of 120031112009 is 900211130021.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 120031112009 - 2²⁴ = 120014334793 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (120031112029) 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, 1276926677 + ... + 1276926770.

It is an arithmetic number, because the mean of its divisors is an integer number (30646241376).

Almost surely, 2^120031112009 is an apocalyptic number.

It is an amenable number.

120031112009 is a deficient number, since it is larger than the sum of its proper divisors (2553853495).

120031112009 is an equidigital number, since it uses as much as digits as its factorization.

120031112009 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2553853494.

The product of its (nonzero) digits is 108, while the sum is 20.

The spelling of 120031112009 in words is "one hundred twenty billion, thirty-one million, one hundred twelve thousand, nine".