1234423219 has 2 divisors, whose sum is σ = 1234423220. Its totient is φ = 1234423218.

The previous prime is 1234423213. The next prime is 1234423241. The reversal of 1234423219 is 9123244321.

It is a weak prime.

It is an emirp because it is prime and its reverse (9123244321) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1234423219 - 2¹¹ = 1234421171 is a prime.

It is a super-2 number, since 2×1234423219² = 3047601367212643922, which contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (1234423213) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 617211609 + 617211610.

It is an arithmetic number, because the mean of its divisors is an integer number (617211610).

Almost surely, 2^1234423219 is an apocalyptic number.

1234423219 is a deficient number, since it is larger than the sum of its proper divisors (1).

1234423219 is an equidigital number, since it uses as much as digits as its factorization.

1234423219 is an odious number, because the sum of its binary digits is odd.

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

The square root of 1234423219 is about 35134.3595216990. The cubic root of 1234423219 is about 1072.7240745095.

The spelling of 1234423219 in words is "one billion, two hundred thirty-four million, four hundred twenty-three thousand, two hundred nineteen".