120142331 has 12 divisors (see below), whose sum is σ = 126410400. Its totient is φ = 114031008.

The previous prime is 120142313. The next prime is 120142333. The reversal of 120142331 is 133241021.

It is a de Polignac number, because none of the positive numbers 2^k-120142331 is a prime.

It is a super-2 number, since 2×120142331² = 28868359396227122, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120142333) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 524525 + ... + 524753.

It is an arithmetic number, because the mean of its divisors is an integer number (10534200).

Almost surely, 2^120142331 is an apocalyptic number.

120142331 is a deficient number, since it is larger than the sum of its proper divisors (6268069).

120142331 is an frugal number, since it uses more digits than its factorization.

120142331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 566 (or 337 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

The square root of 120142331 is about 10960.9457164973. The cubic root of 120142331 is about 493.4373480562.

Adding to 120142331 its reverse (133241021), we get a palindrome (253383352).

The spelling of 120142331 in words is "one hundred twenty million, one hundred forty-two thousand, three hundred thirty-one".