13231011432 has 16 divisors (see below), whose sum is σ = 33077528640. Its totient is φ = 4410337136.

The previous prime is 13231011427. The next prime is 13231011433. The reversal of 13231011432 is 23411013231.

It is a junction number, because it is equal to n+sod(n) for n = 13231011399 and 13231011408.

It is not an unprimeable number, because it can be changed into a prime (13231011433) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 275646048 + ... + 275646095.

It is an arithmetic number, because the mean of its divisors is an integer number (2067345540).

Almost surely, 2^13231011432 is an apocalyptic number.

13231011432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13231011432 is an abundant number, since it is smaller than the sum of its proper divisors (19846517208).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13231011432 is a wasteful number, since it uses less digits than its factorization.

13231011432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 551292152 (or 551292148 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 13231011432 its reverse (23411013231), we get a palindrome (36642024663).

The spelling of 13231011432 in words is "thirteen billion, two hundred thirty-one million, eleven thousand, four hundred thirty-two".