13431013432 has 32 divisors (see below), whose sum is σ = 25465280400. Its totient is φ = 6640395264.

The previous prime is 13431013381. The next prime is 13431013439. The reversal of 13431013432 is 23431013431.

It is a junction number, because it is equal to n+sod(n) for n = 13431013397 and 13431013406.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13431013439) 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, 946663 + ... + 960745.

Almost surely, 2^13431013432 is an apocalyptic number.

It is an amenable number.

13431013432 is a deficient number, since it is larger than the sum of its proper divisors (12034266968).

13431013432 is a wasteful number, since it uses less digits than its factorization.

13431013432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15415 (or 15411 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 13431013432 its reverse (23431013431), we get a palindrome (36862026863).

Subtracting 13431013432 from its reverse (23431013431), we obtain a palindrome (9999999999).

The spelling of 13431013432 in words is "thirteen billion, four hundred thirty-one million, thirteen thousand, four hundred thirty-two".