113215233 has 4 divisors (see below), whose sum is σ = 150953648. Its totient is φ = 75476820.

The previous prime is 113215187. The next prime is 113215241. The reversal of 113215233 is 332512311.

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 113215233 - 2⁹ = 113214721 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (113215273) 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, 18869203 + ... + 18869208.

It is an arithmetic number, because the mean of its divisors is an integer number (37738412).

Almost surely, 2^113215233 is an apocalyptic number.

It is an amenable number.

113215233 is a deficient number, since it is larger than the sum of its proper divisors (37738415).

113215233 is an equidigital number, since it uses as much as digits as its factorization.

113215233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37738414.

The product of its digits is 540, while the sum is 21.

The square root of 113215233 is about 10640.2647053539. The cubic root of 113215233 is about 483.7655687422.

Adding to 113215233 its reverse (332512311), we get a palindrome (445727544).

The spelling of 113215233 in words is "one hundred thirteen million, two hundred fifteen thousand, two hundred thirty-three".