223031220313 has 4 divisors (see below), whose sum is σ = 243306785808. Its totient is φ = 202755654820.

The previous prime is 223031220277. The next prime is 223031220319. The reversal of 223031220313 is 313022130322.

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.

It is a cyclic number.

It is not a de Polignac number, because 223031220313 - 2¹³ = 223031212121 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (223031220319) 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, 10137782731 + ... + 10137782752.

It is an arithmetic number, because the mean of its divisors is an integer number (60826696452).

Almost surely, 2^223031220313 is an apocalyptic number.

It is an amenable number.

223031220313 is a deficient number, since it is larger than the sum of its proper divisors (20275565495).

223031220313 is a wasteful number, since it uses less digits than its factorization.

223031220313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20275565494.

The product of its (nonzero) digits is 1296, while the sum is 22.

Adding to 223031220313 its reverse (313022130322), we get a palindrome (536053350635).

It can be divided in two parts, 223031 and 220313, that added together give a palindrome (443344).

The spelling of 223031220313 in words is "two hundred twenty-three billion, thirty-one million, two hundred twenty thousand, three hundred thirteen".