120111897 has 4 divisors (see below), whose sum is σ = 160149200. Its totient is φ = 80074596.

The previous prime is 120111889. The next prime is 120111913. The reversal of 120111897 is 798111021.

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 not a de Polignac number, because 120111897 - 2³ = 120111889 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120111847) 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, 20018647 + ... + 20018652.

It is an arithmetic number, because the mean of its divisors is an integer number (40037300).

Almost surely, 2^120111897 is an apocalyptic number.

It is an amenable number.

120111897 is a deficient number, since it is larger than the sum of its proper divisors (40037303).

120111897 is an equidigital number, since it uses as much as digits as its factorization.

120111897 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40037302.

The product of its (nonzero) digits is 1008, while the sum is 30.

The square root of 120111897 is about 10959.5573359511. The cubic root of 120111897 is about 493.3956793111.

The spelling of 120111897 in words is "one hundred twenty million, one hundred eleven thousand, eight hundred ninety-seven".