1423423219 has 2 divisors, whose sum is σ = 1423423220. Its totient is φ = 1423423218.

The previous prime is 1423423213. The next prime is 1423423223. The reversal of 1423423219 is 9123243241.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1423423219 is a prime.

It is a super-2 number, since 2×1423423219² = 4052267320776643922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1423423213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711711609 + 711711610.

It is an arithmetic number, because the mean of its divisors is an integer number (711711610).

Almost surely, 2^1423423219 is an apocalyptic number.

1423423219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423423219 is an equidigital number, since it uses as much as digits as its factorization.

1423423219 is an evil number, because the sum of its binary digits is even.

The product of its digits is 10368, while the sum is 31.

The square root of 1423423219 is about 37728.2814212362. The cubic root of 1423423219 is about 1124.8933479801.

The spelling of 1423423219 in words is "one billion, four hundred twenty-three million, four hundred twenty-three thousand, two hundred nineteen".