113031720 has 64 divisors (see below), whose sum is σ = 376776000. Its totient is φ = 30141504.

The previous prime is 113031701. The next prime is 113031733. The reversal of 113031720 is 27130311.

It is a super-3 number, since 3×113031720³ (a number of 25 digits) contains 333 as substring.

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

It is a junction number, because it is equal to n+sod(n) for n = 113031693 and 113031702.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 51250 + ... + 53409.

It is an arithmetic number, because the mean of its divisors is an integer number (5887125).

Almost surely, 2^113031720 is an apocalyptic number.

113031720 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113031720 is an abundant number, since it is smaller than the sum of its proper divisors (263744280).

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

113031720 is a wasteful number, since it uses less digits than its factorization.

113031720 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 104679 (or 104669 counting only the distinct ones).

The product of its (nonzero) digits is 126, while the sum is 18.

The square root of 113031720 is about 10631.6376913437. The cubic root of 113031720 is about 483.5040453921.

The spelling of 113031720 in words is "one hundred thirteen million, thirty-one thousand, seven hundred twenty".