12431131534 has 8 divisors (see below), whose sum is σ = 18655655400. Its totient is φ = 6212579736.

The previous prime is 12431131513. The next prime is 12431131547. The reversal of 12431131534 is 43513113421.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1487809 + ... + 1496140.

It is an arithmetic number, because the mean of its divisors is an integer number (2331956925).

Almost surely, 2^12431131534 is an apocalyptic number.

12431131534 is a deficient number, since it is larger than the sum of its proper divisors (6224523866).

12431131534 is a wasteful number, since it uses less digits than its factorization.

12431131534 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2986034.

The product of its digits is 4320, while the sum is 28.

Adding to 12431131534 its reverse (43513113421), we get a palindrome (55944244955).

The spelling of 12431131534 in words is "twelve billion, four hundred thirty-one million, one hundred thirty-one thousand, five hundred thirty-four".