113020221331 has 4 divisors (see below), whose sum is σ = 113040051664. Its totient is φ = 113000391000.

The previous prime is 113020221229. The next prime is 113020221343. The reversal of 113020221331 is 133122020311.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 113020221331 - 2¹⁷ = 113020090259 is a prime.

It is a super-2 number, since 2×113020221331² (a number of 23 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113020221299 and 113020221308.

It is not an unprimeable number, because it can be changed into a prime (113020321331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 9906615 + ... + 9918016.

It is an arithmetic number, because the mean of its divisors is an integer number (28260012916).

Almost surely, 2^113020221331 is an apocalyptic number.

113020221331 is a deficient number, since it is larger than the sum of its proper divisors (19830333).

113020221331 is an equidigital number, since it uses as much as digits as its factorization.

113020221331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 19830332.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 113020221331 its reverse (133122020311), we get a palindrome (246142241642).

The spelling of 113020221331 in words is "one hundred thirteen billion, twenty million, two hundred twenty-one thousand, three hundred thirty-one".