113213211 has 4 divisors (see below), whose sum is σ = 150950952. Its totient is φ = 75475472.

The previous prime is 113213207. The next prime is 113213227. The reversal of 113213211 is 112312311.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 112312311 = 3 ⋅37437437.

It is a cyclic number.

It is not a de Polignac number, because 113213211 - 2² = 113213207 is a prime.

It is a super-2 number, since 2×113213211² = 25634462289861042, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (113213201) 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, 18868866 + ... + 18868871.

It is an arithmetic number, because the mean of its divisors is an integer number (37737738).

Almost surely, 2^113213211 is an apocalyptic number.

113213211 is a deficient number, since it is larger than the sum of its proper divisors (37737741).

113213211 is an equidigital number, since it uses as much as digits as its factorization.

113213211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37737740.

The product of its digits is 36, while the sum is 15.

The square root of 113213211 is about 10640.1696884965. The cubic root of 113213211 is about 483.7626887417.

Adding to 113213211 its reverse (112312311), we get a palindrome (225525522).

The spelling of 113213211 in words is "one hundred thirteen million, two hundred thirteen thousand, two hundred eleven".