313322138317049 has 2 divisors, whose sum is σ = 313322138317050. Its totient is φ = 313322138317048.

The previous prime is 313322138317043. The next prime is 313322138317129. The reversal of 313322138317049 is 940713831223313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 297227944090000 + 16094194227049 = 17240300^2 + 4011757^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313322138317049 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 313322138316988 and 313322138317006.

It is not a weakly prime, because it can be changed into another prime (313322138317043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156661069158524 + 156661069158525.

It is an arithmetic number, because the mean of its divisors is an integer number (156661069158525).

Almost surely, 2^{313322138317049} is an apocalyptic number.

It is an amenable number.

313322138317049 is a deficient number, since it is larger than the sum of its proper divisors (1).

313322138317049 is an equidigital number, since it uses as much as digits as its factorization.

313322138317049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1959552, while the sum is 50.

The spelling of 313322138317049 in words is "three hundred thirteen trillion, three hundred twenty-two billion, one hundred thirty-eight million, three hundred seventeen thousand, forty-nine".