12042026531 has 16 divisors (see below), whose sum is σ = 12406268448. Its totient is φ = 11683622400.

The previous prime is 12042026527. The next prime is 12042026543. The reversal of 12042026531 is 13562024021.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 12042026531 - 2² = 12042026527 is a prime.

It is a super-2 number, since 2×12042026531² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 12042026531.

It is not an unprimeable number, because it can be changed into a prime (12042026501) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4155275 + ... + 4158171.

It is an arithmetic number, because the mean of its divisors is an integer number (775391778).

Almost surely, 2^12042026531 is an apocalyptic number.

12042026531 is a deficient number, since it is larger than the sum of its proper divisors (364241917).

12042026531 is an equidigital number, since it uses as much as digits as its factorization.

12042026531 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3862.

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 12042026531 in words is "twelve billion, forty-two million, twenty-six thousand, five hundred thirty-one".