113251212 has 36 divisors (see below), whose sum is σ = 303115176. Its totient is φ = 35529600.

The previous prime is 113251211. The next prime is 113251213. The reversal of 113251212 is 212152311.

It is an interprime number because it is at equal distance from previous prime (113251211) and next prime (113251213).

It is a tau number, because it is divible by the number of its divisors (36).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (113251211) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 91914 + ... + 93137.

It is an arithmetic number, because the mean of its divisors is an integer number (8419866).

Almost surely, 2^113251212 is an apocalyptic number.

113251212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

113251212 is an abundant number, since it is smaller than the sum of its proper divisors (189863964).

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

113251212 is a wasteful number, since it uses less digits than its factorization.

113251212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 185078 (or 185073 counting only the distinct ones).

The product of its digits is 120, while the sum is 18.

The square root of 113251212 is about 10641.9552714715. The cubic root of 113251212 is about 483.8168090730.

The spelling of 113251212 in words is "one hundred thirteen million, two hundred fifty-one thousand, two hundred twelve".