431000344111 has 2 divisors, whose sum is σ = 431000344112. Its totient is φ = 431000344110.

The previous prime is 431000344109. The next prime is 431000344133. The reversal of 431000344111 is 111443000134.

It is a happy number.

It is an a-pointer prime, because the next prime (431000344133) can be obtained adding 431000344111 to its sum of digits (22).

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 431000344111 - 2¹ = 431000344109 is a prime.

It is a super-2 number, since 2×431000344111² (a number of 24 digits) contains 22 as substring.

Together with 431000344109, 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 (431000344171) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 215500172055 + 215500172056.

It is an arithmetic number, because the mean of its divisors is an integer number (215500172056).

Almost surely, 2^431000344111 is an apocalyptic number.

431000344111 is a deficient number, since it is larger than the sum of its proper divisors (1).

431000344111 is an equidigital number, since it uses as much as digits as its factorization.

431000344111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 431000344111 its reverse (111443000134), we get a palindrome (542443344245).

The spelling of 431000344111 in words is "four hundred thirty-one billion, three hundred forty-four thousand, one hundred eleven".