431420040263 has 2 divisors, whose sum is σ = 431420040264. Its totient is φ = 431420040262.

The previous prime is 431420040241. The next prime is 431420040329. The reversal of 431420040263 is 362040024134.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-431420040263 is a prime.

It is a super-2 number, since 2×431420040263² (a number of 24 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431420040223) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215710020131 + 215710020132.

It is an arithmetic number, because the mean of its divisors is an integer number (215710020132).

Almost surely, 2^431420040263 is an apocalyptic number.

431420040263 is a deficient number, since it is larger than the sum of its proper divisors (1).

431420040263 is an equidigital number, since it uses as much as digits as its factorization.

431420040263 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 431420040263 its reverse (362040024134), we get a palindrome (793460064397).

The spelling of 431420040263 in words is "four hundred thirty-one billion, four hundred twenty million, forty thousand, two hundred sixty-three".