223131320113 has 8 divisors (see below), whose sum is σ = 240652328168. Its totient is φ = 205661320704.

The previous prime is 223131320099. The next prime is 223131320117. The reversal of 223131320113 is 311023131322.

It can be written as a sum of positive squares in 4 ways, for example, as 47747931169 + 175383388944 = 218513^2 + 418788^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-223131320113 is a prime.

It is a super-3 number, since 3×223131320113³ (a number of 35 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223131320117) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 12743070 + ... + 12760567.

It is an arithmetic number, because the mean of its divisors is an integer number (30081541021).

Almost surely, 2^223131320113 is an apocalyptic number.

It is an amenable number.

223131320113 is a deficient number, since it is larger than the sum of its proper divisors (17521008055).

223131320113 is a wasteful number, since it uses less digits than its factorization.

223131320113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 25504323.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 223131320113 its reverse (311023131322), we get a palindrome (534154451435).

The spelling of 223131320113 in words is "two hundred twenty-three billion, one hundred thirty-one million, three hundred twenty thousand, one hundred thirteen".