113021321 has 8 divisors (see below), whose sum is σ = 136765440. Its totient is φ = 91176768.
The previous prime is 113021309. The next prime is 113021327. The reversal of 113021321 is 123120311.
It is a sphenic number, since it is the product of 3 distinct primes.
It is a cyclic number.
It is not a de Polignac number, because 113021321 - 214 = 113004937 is a prime.
It is a junction number, because it is equal to n+sod(n) for n = 113021296 and 113021305.
It is not an unprimeable number, because it can be changed into a prime (113021327) 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 7 ways as a sum of consecutive naturals, for example, 474761 + ... + 474998.
It is an arithmetic number, because the mean of its divisors is an integer number (17095680).
Almost surely, 2113021321 is an apocalyptic number.
It is an amenable number.
113021321 is a deficient number, since it is larger than the sum of its proper divisors (23744119).
113021321 is an equidigital number, since it uses as much as digits as its factorization.
113021321 is an odious number, because the sum of its binary digits is odd.
The sum of its prime factors is 949783.
The product of its (nonzero) digits is 36, while the sum is 14.
The square root of 113021321 is about 10631.1486209158. The cubic root of 113021321 is about 483.4892173634.
Adding to 113021321 its reverse (123120311), we get a palindrome (236141632).
The spelling of 113021321 in words is "one hundred thirteen million, twenty-one thousand, three hundred twenty-one".
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