23221312319 has 2 divisors, whose sum is σ = 23221312320. Its totient is φ = 23221312318.

The previous prime is 23221312277. The next prime is 23221312349. The reversal of 23221312319 is 91321312232.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23221312319 - 2⁸ = 23221312063 is a prime.

It is a super-2 number, since 2×23221312319² (a number of 22 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23221312291 and 23221312300.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23221312349) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610656159 + 11610656160.

It is an arithmetic number, because the mean of its divisors is an integer number (11610656160).

Almost surely, 2^23221312319 is an apocalyptic number.

23221312319 is a deficient number, since it is larger than the sum of its proper divisors (1).

23221312319 is an equidigital number, since it uses as much as digits as its factorization.

23221312319 is an evil number, because the sum of its binary digits is even.

The product of its digits is 3888, while the sum is 29.

The spelling of 23221312319 in words is "twenty-three billion, two hundred twenty-one million, three hundred twelve thousand, three hundred nineteen".