113231211213 has 8 divisors (see below), whose sum is σ = 150978565408. Its totient is φ = 75485665584.

The previous prime is 113231211199. The next prime is 113231211251. The reversal of 113231211213 is 312112132311.

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

It is not a de Polignac number, because 113231211213 - 2⁸ = 113231210957 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 113231211213.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113235211213) 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, 298606 + ... + 561807.

It is an arithmetic number, because the mean of its divisors is an integer number (18872320676).

Almost surely, 2^113231211213 is an apocalyptic number.

It is an amenable number.

113231211213 is a deficient number, since it is larger than the sum of its proper divisors (37747354195).

113231211213 is an equidigital number, since it uses as much as digits as its factorization.

113231211213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 904283.

The product of its digits is 216, while the sum is 21.

Adding to 113231211213 its reverse (312112132311), we get a palindrome (425343343524).

The spelling of 113231211213 in words is "one hundred thirteen billion, two hundred thirty-one million, two hundred eleven thousand, two hundred thirteen".