113213231211212 has 48 divisors (see below), whose sum is σ = 216373585847328. Its totient is φ = 51403603230720.

The previous prime is 113213231211211. The next prime is 113213231211263. The reversal of 113213231211212 is 212112132312311.

It is not an unprimeable number, because it can be changed into a prime (113213231211211) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1643189948 + ... + 1643258844.

It is an arithmetic number, because the mean of its divisors is an integer number (4507783038486).

Almost surely, 2^{113213231211212} is an apocalyptic number.

It is an amenable number.

113213231211212 is a deficient number, since it is larger than the sum of its proper divisors (103160354636116).

113213231211212 is a wasteful number, since it uses less digits than its factorization.

113213231211212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 109706 (or 109704 counting only the distinct ones).

The product of its digits is 864, while the sum is 26.

Adding to 113213231211212 its reverse (212112132312311), we get a palindrome (325325363523523).

The spelling of 113213231211212 in words is "one hundred thirteen trillion, two hundred thirteen billion, two hundred thirty-one million, two hundred eleven thousand, two hundred twelve".