1423313320431 has 16 divisors (see below), whose sum is σ = 1903593286400. Its totient is φ = 945955075968.

The previous prime is 1423313320421. The next prime is 1423313320447. The reversal of 1423313320431 is 1340233133241.

It is not a de Polignac number, because 1423313320431 - 2⁶ = 1423313320367 is a prime.

It is a super-2 number, since 2×1423313320431² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1423313320421) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 9651630 + ... + 9797988.

It is an arithmetic number, because the mean of its divisors is an integer number (118974580400).

Almost surely, 2^{1423313320431} is an apocalyptic number.

1423313320431 is a deficient number, since it is larger than the sum of its proper divisors (480279965969).

1423313320431 is a wasteful number, since it uses less digits than its factorization.

1423313320431 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 156318.

The product of its (nonzero) digits is 15552, while the sum is 30.

Adding to 1423313320431 its reverse (1340233133241), we get a palindrome (2763546453672).

The spelling of 1423313320431 in words is "one trillion, four hundred twenty-three billion, three hundred thirteen million, three hundred twenty thousand, four hundred thirty-one".