1423442431 has 2 divisors, whose sum is σ = 1423442432. Its totient is φ = 1423442430.

The previous prime is 1423442417. The next prime is 1423442441. The reversal of 1423442431 is 1342443241.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1423442431 - 2¹¹ = 1423440383 is a prime.

It is a super-2 number, since 2×1423442431² = 4052376708742379522, which contains 22 as substring.

It is a self number, because there is not a number n which added to its sum of digits gives 1423442431.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1423442441) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 711721215 + 711721216.

It is an arithmetic number, because the mean of its divisors is an integer number (711721216).

Almost surely, 2^1423442431 is an apocalyptic number.

1423442431 is a deficient number, since it is larger than the sum of its proper divisors (1).

1423442431 is an equidigital number, since it uses as much as digits as its factorization.

1423442431 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9216, while the sum is 28.

The square root of 1423442431 is about 37728.5360304372. The cubic root of 1423442431 is about 1124.8984088674.

Adding to 1423442431 its reverse (1342443241), we get a palindrome (2765885672).

It can be divided in two parts, 14234 and 42431, that added together give a palindrome (56665).

The spelling of 1423442431 in words is "one billion, four hundred twenty-three million, four hundred forty-two thousand, four hundred thirty-one".