223231999919 has 2 divisors, whose sum is σ = 223231999920. Its totient is φ = 223231999918.

The previous prime is 223231999889. The next prime is 223231999943. The reversal of 223231999919 is 919999132322.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 223231999919 - 2⁸ = 223231999663 is a prime.

It is a super-3 number, since 3×223231999919³ (a number of 35 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (223231999979) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 111615999959 + 111615999960.

It is an arithmetic number, because the mean of its divisors is an integer number (111615999960).

Almost surely, 2^223231999919 is an apocalyptic number.

223231999919 is a deficient number, since it is larger than the sum of its proper divisors (1).

223231999919 is an equidigital number, since it uses as much as digits as its factorization.

223231999919 is an evil number, because the sum of its binary digits is even.

The product of its digits is 4251528, while the sum is 59.

The spelling of 223231999919 in words is "two hundred twenty-three billion, two hundred thirty-one million, nine hundred ninety-nine thousand, nine hundred nineteen".