120431145 has 32 divisors (see below), whose sum is σ = 209018880. Its totient is φ = 58972160.

The previous prime is 120431137. The next prime is 120431149. The reversal of 120431145 is 541134021.

It is not a de Polignac number, because 120431145 - 2³ = 120431137 is a prime.

It is a super-2 number, since 2×120431145² = 29007321372022050, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (120431149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 4696 + ... + 16214.

It is an arithmetic number, because the mean of its divisors is an integer number (6531840).

Almost surely, 2^120431145 is an apocalyptic number.

120431145 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

120431145 is a deficient number, since it is larger than the sum of its proper divisors (88587735).

120431145 is a wasteful number, since it uses less digits than its factorization.

120431145 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11585.

The product of its (nonzero) digits is 480, while the sum is 21.

The square root of 120431145 is about 10974.1124925891. The cubic root of 120431145 is about 493.8324282616.

Adding to 120431145 its reverse (541134021), we get a palindrome (661565166).

The spelling of 120431145 in words is "one hundred twenty million, four hundred thirty-one thousand, one hundred forty-five".