113144020 has 48 divisors (see below), whose sum is σ = 263483136. Its totient is φ = 40464000.

The previous prime is 113143999. The next prime is 113144033. The reversal of 113144020 is 20441311.

It is a junction number, because it is equal to n+sod(n) for n = 113143985 and 113144003.

It is a congruent number.

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, 9205 + ... + 17635.

It is an arithmetic number, because the mean of its divisors is an integer number (5489232).

Almost surely, 2^113144020 is an apocalyptic number.

113144020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 113144020, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (131741568).

113144020 is an abundant number, since it is smaller than the sum of its proper divisors (150339116).

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

113144020 is a wasteful number, since it uses less digits than its factorization.

113144020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8512 (or 8510 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 113144020 is about 10636.9177866523. The cubic root of 113144020 is about 483.6641170729.

Adding to 113144020 its reverse (20441311), we get a palindrome (133585331).

The spelling of 113144020 in words is "one hundred thirteen million, one hundred forty-four thousand, twenty".