120120531 has 4 divisors (see below), whose sum is σ = 160160712. Its totient is φ = 80080352.

The previous prime is 120120509. The next prime is 120120563. The reversal of 120120531 is 135021021.

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 120120531 - 2¹¹ = 120118483 is a prime.

It is a super-2 number, since 2×120120531² = 28857883935443922, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 120120531.

It is not an unprimeable number, because it can be changed into a prime (120120031) 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, 20020086 + ... + 20020091.

It is an arithmetic number, because the mean of its divisors is an integer number (40040178).

Almost surely, 2^120120531 is an apocalyptic number.

120120531 is a deficient number, since it is larger than the sum of its proper divisors (40040181).

120120531 is an equidigital number, since it uses as much as digits as its factorization.

120120531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 40040180.

The product of its (nonzero) digits is 60, while the sum is 15.

The square root of 120120531 is about 10959.9512316433. The cubic root of 120120531 is about 493.4075012770.

Adding to 120120531 its reverse (135021021), we get a palindrome (255141552).

The spelling of 120120531 in words is "one hundred twenty million, one hundred twenty thousand, five hundred thirty-one".