113121330 has 64 divisors (see below), whose sum is σ = 311447808. Its totient is φ = 25758720.

The previous prime is 113121317. The next prime is 113121341. The reversal of 113121330 is 33121311.

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

It is a Curzon number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 64870 + ... + 66590.

It is an arithmetic number, because the mean of its divisors is an integer number (4866372).

Almost surely, 2^113121330 is an apocalyptic number.

113121330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 113121330, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (155723904).

113121330 is an abundant number, since it is smaller than the sum of its proper divisors (198326478).

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

113121330 is a wasteful number, since it uses less digits than its factorization.

113121330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2051.

The product of its (nonzero) digits is 54, while the sum is 15.

The square root of 113121330 is about 10635.8511648105. The cubic root of 113121330 is about 483.6317834375.

Adding to 113121330 its reverse (33121311), we get a palindrome (146242641).

The spelling of 113121330 in words is "one hundred thirteen million, one hundred twenty-one thousand, three hundred thirty".