32113231 has 4 divisors (see below), whose sum is σ = 32166232. Its totient is φ = 32060232.

The previous prime is 32113223. The next prime is 32113243. The reversal of 32113231 is 13231123.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 32113231 - 2³ = 32113223 is a prime.

It is a super-2 number, since 2×32113231² = 2062519210518722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32113261) 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, 25581 + ... + 26806.

It is an arithmetic number, because the mean of its divisors is an integer number (8041558).

Almost surely, 2^32113231 is an apocalyptic number.

32113231 is a deficient number, since it is larger than the sum of its proper divisors (53001).

32113231 is an equidigital number, since it uses as much as digits as its factorization.

32113231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53000.

The product of its digits is 108, while the sum is 16.

The square root of 32113231 is about 5666.8537125993. The cubic root of 32113231 is about 317.8542341838.

Adding to 32113231 its reverse (13231123), we get a palindrome (45344354).

The spelling of 32113231 in words is "thirty-two million, one hundred thirteen thousand, two hundred thirty-one".