113231221213 has 8 divisors (see below), whose sum is σ = 124497607680. Its totient is φ = 102126941280.

The previous prime is 113231221123. The next prime is 113231221231. The reversal of 113231221213 is 312122132311.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113231221213 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 (113231221913) 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, 40525168 + ... + 40527961.

It is an arithmetic number, because the mean of its divisors is an integer number (15562200960).

Almost surely, 2^113231221213 is an apocalyptic number.

It is an amenable number.

113231221213 is a deficient number, since it is larger than the sum of its proper divisors (11266386467).

113231221213 is a wasteful number, since it uses less digits than its factorization.

113231221213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 81053267.

The product of its digits is 432, while the sum is 22.

Adding to 113231221213 its reverse (312122132311), we get a palindrome (425353353524).

The spelling of 113231221213 in words is "one hundred thirteen billion, two hundred thirty-one million, two hundred twenty-one thousand, two hundred thirteen".