12431322431031 has 64 divisors (see below), whose sum is σ = 20584544993280. Its totient is φ = 6512221566720.

The previous prime is 12431322431027. The next prime is 12431322431041. The reversal of 12431322431031 is 13013422313421.

It is not a de Polignac number, because 12431322431031 - 2² = 12431322431027 is a prime.

It is a super-2 number, since 2×12431322431031² (a number of 27 digits) contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 12431322431031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12431322431041) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 292666411 + ... + 292708883.

It is an arithmetic number, because the mean of its divisors is an integer number (321633515520).

Almost surely, 2^{12431322431031} is an apocalyptic number.

12431322431031 is a deficient number, since it is larger than the sum of its proper divisors (8153222562249).

12431322431031 is a wasteful number, since it uses less digits than its factorization.

12431322431031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66196.

The product of its (nonzero) digits is 10368, while the sum is 30.

Adding to 12431322431031 its reverse (13013422313421), we get a palindrome (25444744744452).

The spelling of 12431322431031 in words is "twelve trillion, four hundred thirty-one billion, three hundred twenty-two million, four hundred thirty-one thousand, thirty-one".