12403360531 has 16 divisors (see below), whose sum is σ = 13883594400. Its totient is φ = 11011811328.

The previous prime is 12403360517. The next prime is 12403360547. The reversal of 12403360531 is 13506330421.

It is a cyclic number.

It is not a de Polignac number, because 12403360531 - 2¹⁵ = 12403327763 is a prime.

It is a super-2 number, since 2×12403360531² (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 12403360531.

It is not an unprimeable number, because it can be changed into a prime (12403360511) 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, 7146 + ... + 157663.

It is an arithmetic number, because the mean of its divisors is an integer number (867724650).

Almost surely, 2^12403360531 is an apocalyptic number.

12403360531 is a deficient number, since it is larger than the sum of its proper divisors (1480233869).

12403360531 is a wasteful number, since it uses less digits than its factorization.

12403360531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 165078.

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 12403360531 its reverse (13506330421), we get a palindrome (25909690952).

The spelling of 12403360531 in words is "twelve billion, four hundred three million, three hundred sixty thousand, five hundred thirty-one".