311713654243 has 2 divisors, whose sum is σ = 311713654244. Its totient is φ = 311713654242.

The previous prime is 311713654229. The next prime is 311713654249. The reversal of 311713654243 is 342456317113.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311713654243 - 2²⁹ = 311176783331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 311713654196 and 311713654205.

It is not a weakly prime, because it can be changed into another prime (311713654249) 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, 155856827121 + 155856827122.

It is an arithmetic number, because the mean of its divisors is an integer number (155856827122).

Almost surely, 2^311713654243 is an apocalyptic number.

311713654243 is a deficient number, since it is larger than the sum of its proper divisors (1).

311713654243 is an equidigital number, since it uses as much as digits as its factorization.

311713654243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 181440, while the sum is 40.

The spelling of 311713654243 in words is "three hundred eleven billion, seven hundred thirteen million, six hundred fifty-four thousand, two hundred forty-three".