23423440219 has 2 divisors, whose sum is σ = 23423440220. Its totient is φ = 23423440218.

The previous prime is 23423440211. The next prime is 23423440241. The reversal of 23423440219 is 91204432432.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 23423440219 - 2³ = 23423440211 is a prime.

It is a super-2 number, since 2×23423440219² (a number of 22 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (23423440211) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 11711720109 + 11711720110.

It is an arithmetic number, because the mean of its divisors is an integer number (11711720110).

Almost surely, 2^23423440219 is an apocalyptic number.

23423440219 is a deficient number, since it is larger than the sum of its proper divisors (1).

23423440219 is an equidigital number, since it uses as much as digits as its factorization.

23423440219 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 41472, while the sum is 34.

The spelling of 23423440219 in words is "twenty-three billion, four hundred twenty-three million, four hundred forty thousand, two hundred nineteen".