13113432 has 24 divisors (see below), whose sum is σ = 35515740. Its totient is φ = 4371120.

The previous prime is 13113431. The next prime is 13113467. The reversal of 13113432 is 23431131.

It is a tau number, because it is divible by the number of its divisors (24).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a nude number because it is divisible by every one of its digits.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13113431) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 90994 + ... + 91137.

Almost surely, 2^13113432 is an apocalyptic number.

13113432 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

13113432 is an abundant number, since it is smaller than the sum of its proper divisors (22402308).

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

13113432 is a wasteful number, since it uses less digits than its factorization.

13113432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 182143 (or 182136 counting only the distinct ones).

The product of its digits is 216, while the sum is 18.

The square root of 13113432 is about 3621.2472989289. The cubic root of 13113432 is about 235.8153779679.

Adding to 13113432 its reverse (23431131), we get a palindrome (36544563).

The spelling of 13113432 in words is "thirteen million, one hundred thirteen thousand, four hundred thirty-two".