113302121 has 4 divisors (see below), whose sum is σ = 114341700. Its totient is φ = 112262544.

The previous prime is 113302109. The next prime is 113302129. The reversal of 113302121 is 121203311.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 121203311 = 3571 ⋅33941.

It can be written as a sum of positive squares in 2 ways, for example, as 46389721 + 66912400 = 6811^2 + 8180^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113302121 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113302096 and 113302105.

It is not an unprimeable number, because it can be changed into a prime (113302129) 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, 519626 + ... + 519843.

It is an arithmetic number, because the mean of its divisors is an integer number (28585425).

Almost surely, 2^113302121 is an apocalyptic number.

It is an amenable number.

113302121 is a deficient number, since it is larger than the sum of its proper divisors (1039579).

113302121 is a wasteful number, since it uses less digits than its factorization.

113302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1039578.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 113302121 is about 10644.3469034037. The cubic root of 113302121 is about 483.8892937724.

Adding to 113302121 its reverse (121203311), we get a palindrome (234505432).

The spelling of 113302121 in words is "one hundred thirteen million, three hundred two thousand, one hundred twenty-one".