223231312279 has 2 divisors, whose sum is σ = 223231312280. Its totient is φ = 223231312278.

The previous prime is 223231312261. The next prime is 223231312331. The reversal of 223231312279 is 972213132322.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 223231312279 - 2⁵ = 223231312247 is a prime.

It is a super-3 number, since 3×223231312279³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223231312229) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111615656139 + 111615656140.

It is an arithmetic number, because the mean of its divisors is an integer number (111615656140).

Almost surely, 2^223231312279 is an apocalyptic number.

223231312279 is a deficient number, since it is larger than the sum of its proper divisors (1).

223231312279 is an equidigital number, since it uses as much as digits as its factorization.

223231312279 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 54432, while the sum is 37.

The spelling of 223231312279 in words is "two hundred twenty-three billion, two hundred thirty-one million, three hundred twelve thousand, two hundred seventy-nine".