113031212 has 24 divisors (see below), whose sum is σ = 233859360. Its totient is φ = 46771200.

The previous prime is 113031199. The next prime is 113031227. The reversal of 113031212 is 212130311.

It is a Harshad number since it is a multiple of its sum of digits (14).

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, 68789 + ... + 70412.

It is an arithmetic number, because the mean of its divisors is an integer number (9744140).

Almost surely, 2^113031212 is an apocalyptic number.

It is an amenable number.

113031212 is an abundant number, since it is smaller than the sum of its proper divisors (120828148).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

113031212 is a wasteful number, since it uses less digits than its factorization.

113031212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 139241 (or 139239 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 113031212 is about 10631.6138003598. The cubic root of 113031212 is about 483.5033210514.

Adding to 113031212 its reverse (212130311), we get a palindrome (325161523).

Subtracting 113031212 from its reverse (212130311), we obtain a palindrome (99099099).

The spelling of 113031212 in words is "one hundred thirteen million, thirty-one thousand, two hundred twelve".