12310431 has 16 divisors (see below), whose sum is σ = 19862784. Its totient is φ = 6620544.

The previous prime is 12310429. The next prime is 12310439. The reversal of 12310431 is 13401321.

It is not a de Polignac number, because 12310431 - 2¹ = 12310429 is a prime.

It is a super-2 number, since 2×12310431² = 303093422811522, 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 12310431.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (12310439) 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, 16885 + ... + 17598.

It is an arithmetic number, because the mean of its divisors is an integer number (1241424).

Almost surely, 2^12310431 is an apocalyptic number.

12310431 is a deficient number, since it is larger than the sum of its proper divisors (7552353).

12310431 is a wasteful number, since it uses less digits than its factorization.

12310431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34510.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 12310431 is about 3508.6223792252. The cubic root of 12310431 is about 230.9002586583.

Adding to 12310431 its reverse (13401321), we get a palindrome (25711752).

The spelling of 12310431 in words is "twelve million, three hundred ten thousand, four hundred thirty-one".