23320519 has 2 divisors, whose sum is σ = 23320520. Its totient is φ = 23320518.

The previous prime is 23320511. The next prime is 23320523. The reversal of 23320519 is 91502332.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 23320519 - 2³ = 23320511 is a prime.

It is a super-2 number, since 2×23320519² = 1087693212858722, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 23320493 and 23320502.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (23320511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11660259 + 11660260.

It is an arithmetic number, because the mean of its divisors is an integer number (11660260).

Almost surely, 2^23320519 is an apocalyptic number.

23320519 is a deficient number, since it is larger than the sum of its proper divisors (1).

23320519 is an equidigital number, since it uses as much as digits as its factorization.

23320519 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1620, while the sum is 25.

The square root of 23320519 is about 4829.1323237203. The cubic root of 23320519 is about 285.7016425001.

The spelling of 23320519 in words is "twenty-three million, three hundred twenty thousand, five hundred nineteen".