113122131212 has 12 divisors (see below), whose sum is σ = 198462381600. Its totient is φ = 56418593616.

The previous prime is 113122131193. The next prime is 113122131299. The reversal of 113122131212 is 212131221311.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 35616212 + ... + 35619387.

It is an arithmetic number, because the mean of its divisors is an integer number (16538531800).

Almost surely, 2^113122131212 is an apocalyptic number.

It is an amenable number.

113122131212 is a deficient number, since it is larger than the sum of its proper divisors (85340250388).

113122131212 is a wasteful number, since it uses less digits than its factorization.

113122131212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 71236000 (or 71235998 counting only the distinct ones).

The product of its digits is 144, while the sum is 20.

Adding to 113122131212 its reverse (212131221311), we get a palindrome (325253352523).

Subtracting 113122131212 from its reverse (212131221311), we obtain a palindrome (99009090099).

The spelling of 113122131212 in words is "one hundred thirteen billion, one hundred twenty-two million, one hundred thirty-one thousand, two hundred twelve".