113021244 has 168 divisors, whose sum is σ = 348885600. Its totient is φ = 32006016.

The previous prime is 113021231. The next prime is 113021267. The reversal of 113021244 is 442120311.

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 55 ways as a sum of consecutive naturals, for example, 1000132 + ... + 1000244.

It is an arithmetic number, because the mean of its divisors is an integer number (2076700).

Almost surely, 2^113021244 is an apocalyptic number.

113021244 is a gapful number since it is divisible by the number (14) 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 113021244, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (174442800).

113021244 is an abundant number, since it is smaller than the sum of its proper divisors (235864356).

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

113021244 is an equidigital number, since it uses as much as digits as its factorization.

113021244 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 156 (or 125 counting only the distinct ones).

The product of its (nonzero) digits is 192, while the sum is 18.

The square root of 113021244 is about 10631.1449994815. The cubic root of 113021244 is about 483.4891075650.

Adding to 113021244 its reverse (442120311), we get a palindrome (555141555).

It can be divided in two parts, 1130212 and 44, that added together give a triangular number (1130256 = T₁₅₀₃).

The spelling of 113021244 in words is "one hundred thirteen million, twenty-one thousand, two hundred forty-four".