120040531 has 6 divisors (see below), whose sum is σ = 129984900. Its totient is φ = 110806488.

The previous prime is 120040517. The next prime is 120040549. The reversal of 120040531 is 135040021.

It is not a de Polignac number, because 120040531 - 2¹⁵ = 120007763 is a prime.

It is a super-2 number, since 2×120040531² = 28819458165523922, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (120040511) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 354981 + ... + 355318.

It is an arithmetic number, because the mean of its divisors is an integer number (21664150).

Almost surely, 2^120040531 is an apocalyptic number.

120040531 is a deficient number, since it is larger than the sum of its proper divisors (9944369).

120040531 is an equidigital number, since it uses as much as digits as its factorization.

120040531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 710325 (or 710312 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 16.

The square root of 120040531 is about 10956.3009724998. The cubic root of 120040531 is about 493.2979408604.

Adding to 120040531 its reverse (135040021), we get a palindrome (255080552).

The spelling of 120040531 in words is "one hundred twenty million, forty thousand, five hundred thirty-one".