12331040320531 has 8 divisors (see below), whose sum is σ = 12341086236000. Its totient is φ = 12320995017408.

The previous prime is 12331040320523. The next prime is 12331040320559. The reversal of 12331040320531 is 13502304013321.

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

It is a cyclic number.

It is not a de Polignac number, because 12331040320531 - 2³ = 12331040320523 is a prime.

It is a super-2 number, since 2×12331040320531² (a number of 27 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 12331040320531.

It is not an unprimeable number, because it can be changed into a prime (12331040327531) 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, 45705970 + ... + 45974968.

It is an arithmetic number, because the mean of its divisors is an integer number (1542635779500).

Almost surely, 2^{12331040320531} is an apocalyptic number.

12331040320531 is a deficient number, since it is larger than the sum of its proper divisors (10045915469).

12331040320531 is a wasteful number, since it uses less digits than its factorization.

12331040320531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 306173.

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

Adding to 12331040320531 its reverse (13502304013321), we get a palindrome (25833344333852).

The spelling of 12331040320531 in words is "twelve trillion, three hundred thirty-one billion, forty million, three hundred twenty thousand, five hundred thirty-one".