311441112101389 has 2 divisors, whose sum is σ = 311441112101390. Its totient is φ = 311441112101388.

The previous prime is 311441112101387. The next prime is 311441112101411. The reversal of 311441112101389 is 983101211144113.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300834802268100 + 10606309833289 = 17344590^2 + 3256733^2 .

It is a cyclic number.

It is not a de Polignac number, because 311441112101389 - 2¹ = 311441112101387 is a prime.

Together with 311441112101387, 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 (311441112101387) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 155720556050694 + 155720556050695.

It is an arithmetic number, because the mean of its divisors is an integer number (155720556050695).

Almost surely, 2^{311441112101389} is an apocalyptic number.

It is an amenable number.

311441112101389 is a deficient number, since it is larger than the sum of its proper divisors (1).

311441112101389 is an equidigital number, since it uses as much as digits as its factorization.

311441112101389 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 20736, while the sum is 40.

The spelling of 311441112101389 in words is "three hundred eleven trillion, four hundred forty-one billion, one hundred twelve million, one hundred one thousand, three hundred eighty-nine".