113440312 has 8 divisors (see below), whose sum is σ = 212700600. Its totient is φ = 56720152.

The previous prime is 113440309. The next prime is 113440331. The reversal of 113440312 is 213044311.

It is a tau number, because it is divible by the number of its divisors (8).

It is a self number, because there is not a number n which added to its sum of digits gives 113440312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 7090012 + ... + 7090027.

It is an arithmetic number, because the mean of its divisors is an integer number (26587575).

Almost surely, 2^113440312 is an apocalyptic number.

It is an amenable number.

113440312 is a deficient number, since it is larger than the sum of its proper divisors (99260288).

113440312 is a wasteful number, since it uses less digits than its factorization.

113440312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14180045 (or 14180041 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 19.

The square root of 113440312 is about 10650.8362113028. The cubic root of 113440312 is about 484.0859419821.

Adding to 113440312 its reverse (213044311), we get a palindrome (326484623).

The spelling of 113440312 in words is "one hundred thirteen million, four hundred forty thousand, three hundred twelve".