113143020 has 24 divisors (see below), whose sum is σ = 316800624. Its totient is φ = 30171456.

The previous prime is 113142961. The next prime is 113143033. The reversal of 113143020 is 20341311.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 942799 + ... + 942918.

It is an arithmetic number, because the mean of its divisors is an integer number (13200026).

Almost surely, 2^113143020 is an apocalyptic number.

113143020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

113143020 is an abundant number, since it is smaller than the sum of its proper divisors (203657604).

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

113143020 is a wasteful number, since it uses less digits than its factorization.

113143020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1885729 (or 1885727 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 113143020 is about 10636.8707804504. The cubic root of 113143020 is about 483.6626921470.

Adding to 113143020 its reverse (20341311), we get a palindrome (133484331).

The spelling of 113143020 in words is "one hundred thirteen million, one hundred forty-three thousand, twenty".