113213533 has 4 divisors (see below), whose sum is σ = 119172160. Its totient is φ = 107254908.

The previous prime is 113213497. The next prime is 113213549. The reversal of 113213533 is 335312311.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 335312311 = 1097 ⋅305663.

It is a cyclic number.

It is not a de Polignac number, because 113213533 - 2¹⁷ = 113082461 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113213563) 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, 2979285 + ... + 2979322.

It is an arithmetic number, because the mean of its divisors is an integer number (29793040).

Almost surely, 2^113213533 is an apocalyptic number.

It is an amenable number.

113213533 is a deficient number, since it is larger than the sum of its proper divisors (5958627).

113213533 is an equidigital number, since it uses as much as digits as its factorization.

113213533 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5958626.

The product of its digits is 810, while the sum is 22.

The square root of 113213533 is about 10640.1848198234. The cubic root of 113213533 is about 483.7631473791.

Adding to 113213533 its reverse (335312311), we get a palindrome (448525844).

The spelling of 113213533 in words is "one hundred thirteen million, two hundred thirteen thousand, five hundred thirty-three".