120117381 has 8 divisors (see below), whose sum is σ = 161742624. Its totient is φ = 79285200.

The previous prime is 120117341. The next prime is 120117397. The reversal of 120117381 is 183711021.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 120117381 - 2⁶ = 120117317 is a prime.

It is a super-2 number, since 2×120117381² = 28856370436598322, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (120117341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 197911 + ... + 198516.

It is an arithmetic number, because the mean of its divisors is an integer number (20217828).

Almost surely, 2^120117381 is an apocalyptic number.

It is an amenable number.

120117381 is a deficient number, since it is larger than the sum of its proper divisors (41625243).

120117381 is a wasteful number, since it uses less digits than its factorization.

120117381 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 396531.

The product of its (nonzero) digits is 336, while the sum is 24.

The square root of 120117381 is about 10959.8075256822. The cubic root of 120117381 is about 493.4031882557.

The spelling of 120117381 in words is "one hundred twenty million, one hundred seventeen thousand, three hundred eighty-one".