120111399 has 12 divisors (see below), whose sum is σ = 173651400. Its totient is φ = 80001744.

The previous prime is 120111389. The next prime is 120111457. The reversal of 120111399 is 993111021.

It is not a de Polignac number, because 120111399 - 2¹⁵ = 120078631 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120111319) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 5632 + ... + 16490.

It is an arithmetic number, because the mean of its divisors is an integer number (14470950).

Almost surely, 2^120111399 is an apocalyptic number.

120111399 is a deficient number, since it is larger than the sum of its proper divisors (53540001).

120111399 is a wasteful number, since it uses less digits than its factorization.

120111399 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12094 (or 12091 counting only the distinct ones).

The product of its (nonzero) digits is 486, while the sum is 27.

The square root of 120111399 is about 10959.5346160318. The cubic root of 120111399 is about 493.3949974154.

The spelling of 120111399 in words is "one hundred twenty million, one hundred eleven thousand, three hundred ninety-nine".