113129912 has 32 divisors (see below), whose sum is σ = 250245120. Its totient is φ = 46919520.

The previous prime is 113129903. The next prime is 113129927. The reversal of 113129912 is 219921311.

It is a congruent number.

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, 30848 + ... + 34319.

It is an arithmetic number, because the mean of its divisors is an integer number (7820160).

Almost surely, 2^113129912 is an apocalyptic number.

It is an amenable number.

113129912 is an abundant number, since it is smaller than the sum of its proper divisors (137115208).

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

113129912 is a wasteful number, since it uses less digits than its factorization.

113129912 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65211 (or 65207 counting only the distinct ones).

The product of its digits is 972, while the sum is 29.

The square root of 113129912 is about 10636.2546039478. The cubic root of 113129912 is about 483.6440134416.

It can be divided in two parts, 1131299 and 12, that added together give a palindrome (1131311).

The spelling of 113129912 in words is "one hundred thirteen million, one hundred twenty-nine thousand, nine hundred twelve".