12120531 has 8 divisors (see below), whose sum is σ = 16217040. Its totient is φ = 8052192.

The previous prime is 12120523. The next prime is 12120533. The reversal of 12120531 is 13502121.

12120531 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 12120531 - 2³ = 12120523 is a prime.

It is a super-2 number, since 2×12120531² = 293814543443922, 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 12120531.

It is not an unprimeable number, because it can be changed into a prime (12120533) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 6016 + ... + 7773.

It is an arithmetic number, because the mean of its divisors is an integer number (2027130).

Almost surely, 2^12120531 is an apocalyptic number.

12120531 is a deficient number, since it is larger than the sum of its proper divisors (4096509).

12120531 is a wasteful number, since it uses less digits than its factorization.

12120531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14085.

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

The square root of 12120531 is about 3481.4552991529. The cubic root of 12120531 is about 229.7068160996.

Adding to 12120531 its reverse (13502121), we get a palindrome (25622652).

The spelling of 12120531 in words is "twelve million, one hundred twenty thousand, five hundred thirty-one".