113311223212 has 24 divisors (see below), whose sum is σ = 218024755200. Its totient is φ = 51099546960.

The previous prime is 113311223149. The next prime is 113311223251. The reversal of 113311223212 is 212322113311.

It is a Harshad number since it is a multiple of its sum of digits (22).

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 10133212 + ... + 10144387.

It is an arithmetic number, because the mean of its divisors is an integer number (9084364800).

Almost surely, 2^113311223212 is an apocalyptic number.

It is an amenable number.

113311223212 is a deficient number, since it is larger than the sum of its proper divisors (104713531988).

113311223212 is a wasteful number, since it uses less digits than its factorization.

113311223212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20277741 (or 20277739 counting only the distinct ones).

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

Adding to 113311223212 its reverse (212322113311), we get a palindrome (325633336523).

The spelling of 113311223212 in words is "one hundred thirteen billion, three hundred eleven million, two hundred twenty-three thousand, two hundred twelve".