113131213 has 8 divisors (see below), whose sum is σ = 121917600. Its totient is φ = 104356848.

The previous prime is 113131199. The next prime is 113131223. The reversal of 113131213 is 312131311.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 113131213 - 2²¹ = 111034061 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 (113131223) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30198 + ... + 33736.

It is an arithmetic number, because the mean of its divisors is an integer number (15239700).

Almost surely, 2^113131213 is an apocalyptic number.

113131213 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

It is an amenable number.

113131213 is a deficient number, since it is larger than the sum of its proper divisors (8786387).

113131213 is a wasteful number, since it uses less digits than its factorization.

113131213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6011.

The product of its digits is 54, while the sum is 16.

The square root of 113131213 is about 10636.3157625185. The cubic root of 113131213 is about 483.6458674118.

Adding to 113131213 its reverse (312131311), we get a palindrome (425262524).

The spelling of 113131213 in words is "one hundred thirteen million, one hundred thirty-one thousand, two hundred thirteen".