113112330221 has 4 divisors (see below), whose sum is σ = 123395269344. Its totient is φ = 102829391100.

The previous prime is 113112330193. The next prime is 113112330263. The reversal of 113112330221 is 122033211311.

It is a happy number.

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, and also an emirpimes, since its reverse is a distinct semiprime: 122033211311 = 11 ⋅11093928301.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113112330221 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 113112330193 and 113112330202.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (113112330521) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5141469545 + ... + 5141469566.

It is an arithmetic number, because the mean of its divisors is an integer number (30848817336).

Almost surely, 2^113112330221 is an apocalyptic number.

113112330221 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

113112330221 is a deficient number, since it is larger than the sum of its proper divisors (10282939123).

113112330221 is a wasteful number, since it uses less digits than its factorization.

113112330221 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 10282939122.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 113112330221 its reverse (122033211311), we get a palindrome (235145541532).

The spelling of 113112330221 in words is "one hundred thirteen billion, one hundred twelve million, three hundred thirty thousand, two hundred twenty-one".