313044124201649 has 2 divisors, whose sum is σ = 313044124201650. Its totient is φ = 313044124201648.

The previous prime is 313044124201643. The next prime is 313044124201709. The reversal of 313044124201649 is 946102421440313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 296416136227600 + 16627987974049 = 17216740^2 + 4077743^2 .

It is an emirp because it is prime and its reverse (946102421440313) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 313044124201649 - 2¹⁶ = 313044124136113 is a prime.

It is a super-2 number, since 2×313044124201649² (a number of 30 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (313044124201643) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156522062100824 + 156522062100825.

It is an arithmetic number, because the mean of its divisors is an integer number (156522062100825).

Almost surely, 2^{313044124201649} is an apocalyptic number.

It is an amenable number.

313044124201649 is a deficient number, since it is larger than the sum of its proper divisors (1).

313044124201649 is an equidigital number, since it uses as much as digits as its factorization.

313044124201649 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 497664, while the sum is 44.

The spelling of 313044124201649 in words is "three hundred thirteen trillion, forty-four billion, one hundred twenty-four million, two hundred one thousand, six hundred forty-nine".