113433213 has 4 divisors (see below), whose sum is σ = 151244288. Its totient is φ = 75622140.

The previous prime is 113433209. The next prime is 113433233. The reversal of 113433213 is 312334311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 113433213 - 2² = 113433209 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113433213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113433233) 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, 18905533 + ... + 18905538.

It is an arithmetic number, because the mean of its divisors is an integer number (37811072).

Almost surely, 2^113433213 is an apocalyptic number.

It is an amenable number.

113433213 is a deficient number, since it is larger than the sum of its proper divisors (37811075).

113433213 is an equidigital number, since it uses as much as digits as its factorization.

113433213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37811074.

The product of its digits is 648, while the sum is 21.

The square root of 113433213 is about 10650.5029458707. The cubic root of 113433213 is about 484.0758438734.

Adding to 113433213 its reverse (312334311), we get a palindrome (425767524).

The spelling of 113433213 in words is "one hundred thirteen million, four hundred thirty-three thousand, two hundred thirteen".