5456431111 has 2 divisors, whose sum is σ = 5456431112. Its totient is φ = 5456431110.

The previous prime is 5456431103. The next prime is 5456431133. The reversal of 5456431111 is 1111346545.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 5456431111 - 2³ = 5456431103 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (5456431511) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2728215555 + 2728215556.

It is an arithmetic number, because the mean of its divisors is an integer number (2728215556).

Almost surely, 2^5456431111 is an apocalyptic number.

5456431111 is a deficient number, since it is larger than the sum of its proper divisors (1).

5456431111 is an equidigital number, since it uses as much as digits as its factorization.

5456431111 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 7200, while the sum is 31.

The square root of 5456431111 is about 73867.6594390265. The cubic root of 5456431111 is about 1760.5007948814.

Adding to 5456431111 its reverse (1111346545), we get a palindrome (6567777656).

The spelling of 5456431111 in words is "five billion, four hundred fifty-six million, four hundred thirty-one thousand, one hundred eleven".