431304420023 has 2 divisors, whose sum is σ = 431304420024. Its totient is φ = 431304420022.

The previous prime is 431304419999. The next prime is 431304420049. The reversal of 431304420023 is 320024403134.

It is an a-pointer prime, because the next prime (431304420049) can be obtained adding 431304420023 to its sum of digits (26).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431304420023 - 2¹⁰ = 431304418999 is a prime.

It is a Sophie Germain prime.

It is a junction number, because it is equal to n+sod(n) for n = 431304419974 and 431304420001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431304420623) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215652210011 + 215652210012.

It is an arithmetic number, because the mean of its divisors is an integer number (215652210012).

Almost surely, 2^431304420023 is an apocalyptic number.

431304420023 is a deficient number, since it is larger than the sum of its proper divisors (1).

431304420023 is an equidigital number, since it uses as much as digits as its factorization.

431304420023 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 6912, while the sum is 26.

Adding to 431304420023 its reverse (320024403134), we get a palindrome (751328823157).

The spelling of 431304420023 in words is "four hundred thirty-one billion, three hundred four million, four hundred twenty thousand, twenty-three".