12431017738 has 16 divisors (see below), whose sum is σ = 18711453600. Its totient is φ = 6193889136.

The previous prime is 12431017699. The next prime is 12431017751. The reversal of 12431017738 is 83771013421.

It is a happy number.

It is a junction number, because it is equal to n+sod(n) for n = 12431017697 and 12431017706.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1382445 + ... + 1391407.

It is an arithmetic number, because the mean of its divisors is an integer number (1169465850).

Almost surely, 2^12431017738 is an apocalyptic number.

12431017738 is a deficient number, since it is larger than the sum of its proper divisors (6280435862).

12431017738 is a wasteful number, since it uses less digits than its factorization.

12431017738 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11301.

The product of its (nonzero) digits is 28224, while the sum is 37.

The spelling of 12431017738 in words is "twelve billion, four hundred thirty-one million, seventeen thousand, seven hundred thirty-eight".