431423201311 has 2 divisors, whose sum is σ = 431423201312. Its totient is φ = 431423201310.

The previous prime is 431423201309. The next prime is 431423201327. The reversal of 431423201311 is 113102324134.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431423201311 - 2¹ = 431423201309 is a prime.

It is a super-2 number, since 2×431423201311² (a number of 24 digits) contains 22 as substring.

Together with 431423201309, it forms a pair of twin primes.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (431423201611) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215711600655 + 215711600656.

It is an arithmetic number, because the mean of its divisors is an integer number (215711600656).

Almost surely, 2^431423201311 is an apocalyptic number.

431423201311 is a deficient number, since it is larger than the sum of its proper divisors (1).

431423201311 is an equidigital number, since it uses as much as digits as its factorization.

431423201311 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1728, while the sum is 25.

Adding to 431423201311 its reverse (113102324134), we get a palindrome (544525525445).

The spelling of 431423201311 in words is "four hundred thirty-one billion, four hundred twenty-three million, two hundred one thousand, three hundred eleven".