23220319 has 2 divisors, whose sum is σ = 23220320. Its totient is φ = 23220318.

The previous prime is 23220313. The next prime is 23220347. The reversal of 23220319 is 91302232.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23220319 - 2⁵ = 23220287 is a prime.

It is a super-2 number, since 2×23220319² = 1078366428923522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 23220319.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23220313) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11610159 + 11610160.

It is an arithmetic number, because the mean of its divisors is an integer number (11610160).

Almost surely, 2^23220319 is an apocalyptic number.

23220319 is a deficient number, since it is larger than the sum of its proper divisors (1).

23220319 is an equidigital number, since it uses as much as digits as its factorization.

23220319 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 648, while the sum is 22.

The square root of 23220319 is about 4818.7466212699. The cubic root of 23220319 is about 285.2918688413.

The spelling of 23220319 in words is "twenty-three million, two hundred twenty thousand, three hundred nineteen".