223031223013 has 4 divisors (see below), whose sum is σ = 223040733580. Its totient is φ = 223021712448.

The previous prime is 223031222963. The next prime is 223031223067. The reversal of 223031223013 is 310322130322.

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

It can be written as a sum of positive squares in 2 ways, for example, as 219996645444 + 3034577569 = 469038^2 + 55087^2 .

It is a cyclic number.

It is not a de Polignac number, because 223031223013 - 2³⁷ = 85592269541 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (223031223083) 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, 4720020 + ... + 4767037.

It is an arithmetic number, because the mean of its divisors is an integer number (55760183395).

Almost surely, 2^223031223013 is an apocalyptic number.

It is an amenable number.

223031223013 is a deficient number, since it is larger than the sum of its proper divisors (9510567).

223031223013 is an equidigital number, since it uses as much as digits as its factorization.

223031223013 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9510566.

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

Adding to 223031223013 its reverse (310322130322), we get a palindrome (533353353335).

The spelling of 223031223013 in words is "two hundred twenty-three billion, thirty-one million, two hundred twenty-three thousand, thirteen".