31344211079 has 2 divisors, whose sum is σ = 31344211080. Its totient is φ = 31344211078.

The previous prime is 31344211049. The next prime is 31344211121. The reversal of 31344211079 is 97011244313.

It is a weak prime.

It is an emirp because it is prime and its reverse (97011244313) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-31344211079 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (31344211049) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 15672105539 + 15672105540.

It is an arithmetic number, because the mean of its divisors is an integer number (15672105540).

Almost surely, 2^31344211079 is an apocalyptic number.

31344211079 is a deficient number, since it is larger than the sum of its proper divisors (1).

31344211079 is an equidigital number, since it uses as much as digits as its factorization.

31344211079 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 18144, while the sum is 35.

The spelling of 31344211079 in words is "thirty-one billion, three hundred forty-four million, two hundred eleven thousand, seventy-nine".