113303121 has 4 divisors (see below), whose sum is σ = 151070832. Its totient is φ = 75535412.

The previous prime is 113303119. The next prime is 113303153. The reversal of 113303121 is 121303311.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 113303121 - 2¹ = 113303119 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 113303121.

It is not an unprimeable number, because it can be changed into a prime (113303101) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 18883851 + ... + 18883856.

It is an arithmetic number, because the mean of its divisors is an integer number (37767708).

Almost surely, 2^113303121 is an apocalyptic number.

It is an amenable number.

113303121 is a deficient number, since it is larger than the sum of its proper divisors (37767711).

113303121 is an equidigital number, since it uses as much as digits as its factorization.

113303121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 37767710.

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

The square root of 113303121 is about 10644.3938765906. The cubic root of 113303121 is about 483.8907173641.

Adding to 113303121 its reverse (121303311), we get a palindrome (234606432).

The spelling of 113303121 in words is "one hundred thirteen million, three hundred three thousand, one hundred twenty-one".