1423405023239 has 2 divisors, whose sum is σ = 1423405023240. Its totient is φ = 1423405023238.

The previous prime is 1423405023193. The next prime is 1423405023247. The reversal of 1423405023239 is 9323205043241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1423405023239 - 2¹² = 1423405019143 is a prime.

It is a super-2 number, since 2×1423405023239² (a number of 25 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423405028239) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711702511619 + 711702511620.

It is an arithmetic number, because the mean of its divisors is an integer number (711702511620).

Almost surely, 2^{1423405023239} is an apocalyptic number.

1423405023239 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423405023239 is an equidigital number, since it uses as much as digits as its factorization.

1423405023239 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 155520, while the sum is 38.

The spelling of 1423405023239 in words is "one trillion, four hundred twenty-three billion, four hundred five million, twenty-three thousand, two hundred thirty-nine".