311214030442543 has 2 divisors, whose sum is σ = 311214030442544. Its totient is φ = 311214030442542.

The previous prime is 311214030442517. The next prime is 311214030442559. The reversal of 311214030442543 is 345244030412113.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 311214030442543 - 2²⁵ = 311213996888111 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (311214070442543) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155607015221271 + 155607015221272.

It is an arithmetic number, because the mean of its divisors is an integer number (155607015221272).

Almost surely, 2^{311214030442543} is an apocalyptic number.

311214030442543 is a deficient number, since it is larger than the sum of its proper divisors (1).

311214030442543 is an equidigital number, since it uses as much as digits as its factorization.

311214030442543 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 138240, while the sum is 37.

Adding to 311214030442543 its reverse (345244030412113), we get a palindrome (656458060854656).

The spelling of 311214030442543 in words is "three hundred eleven trillion, two hundred fourteen billion, thirty million, four hundred forty-two thousand, five hundred forty-three".