113331321 has 6 divisors (see below), whose sum is σ = 163700810. Its totient is φ = 75554208.

The previous prime is 113331313. The next prime is 113331341. The reversal of 113331321 is 123133311.

It is a happy number.

113331321 is a `hidden beast` number, since 1 + 13 + 331 + 321 = 666.

It can be written as a sum of positive squares in only one way, i.e., 104775696 + 8555625 = 10236^2 + 2925^2 .

It is not a de Polignac number, because 113331321 - 2³ = 113331313 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113331294 and 113331303.

It is not an unprimeable number, because it can be changed into a prime (113331301) 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 5 ways as a sum of consecutive naturals, for example, 6296176 + ... + 6296193.

Almost surely, 2^113331321 is an apocalyptic number.

It is an amenable number.

113331321 is a deficient number, since it is larger than the sum of its proper divisors (50369489).

113331321 is a wasteful number, since it uses less digits than its factorization.

113331321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12592375 (or 12592372 counting only the distinct ones).

The product of its digits is 162, while the sum is 18.

The square root of 113331321 is about 10645.7184351269. The cubic root of 113331321 is about 483.9308592012.

Adding to 113331321 its reverse (123133311), we get a palindrome (236464632).

The spelling of 113331321 in words is "one hundred thirteen million, three hundred thirty-one thousand, three hundred twenty-one".