120440131 has 4 divisors (see below), whose sum is σ = 137645872. Its totient is φ = 103234392.

The previous prime is 120440129. The next prime is 120440171. The reversal of 120440131 is 131044021.

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 120440131 - 2¹ = 120440129 is a prime.

It is a super-2 number, since 2×120440131² = 29011650310594322, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120440171) 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, 8602860 + ... + 8602873.

It is an arithmetic number, because the mean of its divisors is an integer number (34411468).

Almost surely, 2^120440131 is an apocalyptic number.

120440131 is a deficient number, since it is larger than the sum of its proper divisors (17205741).

120440131 is an equidigital number, since it uses as much as digits as its factorization.

120440131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17205740.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 120440131 is about 10974.5219030261. The cubic root of 120440131 is about 493.8447104328.

Adding to 120440131 its reverse (131044021), we get a palindrome (251484152).

The spelling of 120440131 in words is "one hundred twenty million, four hundred forty thousand, one hundred thirty-one".