11431685456311 has 2 divisors, whose sum is σ = 11431685456312. Its totient is φ = 11431685456310.

The previous prime is 11431685456309. The next prime is 11431685456333. The reversal of 11431685456311 is 11365458613411.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 11431685456311 - 2¹ = 11431685456309 is a prime.

Together with 11431685456309, 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 (11431685456111) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5715842728155 + 5715842728156.

It is an arithmetic number, because the mean of its divisors is an integer number (5715842728156).

Almost surely, 2^{11431685456311} is an apocalyptic number.

11431685456311 is a deficient number, since it is larger than the sum of its proper divisors (1).

11431685456311 is an equidigital number, since it uses as much as digits as its factorization.

11431685456311 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1036800, while the sum is 49.

The spelling of 11431685456311 in words is "eleven trillion, four hundred thirty-one billion, six hundred eighty-five million, four hundred fifty-six thousand, three hundred eleven".