424402342031 has 2 divisors, whose sum is σ = 424402342032. Its totient is φ = 424402342030.

The previous prime is 424402342019. The next prime is 424402342037. The reversal of 424402342031 is 130243204424.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-424402342031 is a prime.

It is a super-2 number, since 2×424402342031² (a number of 24 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 424402341985 and 424402342003.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (424402342037) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 212201171015 + 212201171016.

It is an arithmetic number, because the mean of its divisors is an integer number (212201171016).

Almost surely, 2^424402342031 is an apocalyptic number.

424402342031 is a deficient number, since it is larger than the sum of its proper divisors (1).

424402342031 is an equidigital number, since it uses as much as digits as its factorization.

424402342031 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18432, while the sum is 29.

Adding to 424402342031 its reverse (130243204424), we get a palindrome (554645546455).

The spelling of 424402342031 in words is "four hundred twenty-four billion, four hundred two million, three hundred forty-two thousand, thirty-one".