313103421223273 has 2 divisors, whose sum is σ = 313103421223274. Its totient is φ = 313103421223272.

The previous prime is 313103421223217. The next prime is 313103421223303. The reversal of 313103421223273 is 372322124301313.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 304923294974809 + 8180126248464 = 17462053^2 + 2860092^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-313103421223273 is a prime.

It is not a weakly prime, because it can be changed into another prime (313103421223213) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156551710611636 + 156551710611637.

It is an arithmetic number, because the mean of its divisors is an integer number (156551710611637).

Almost surely, 2^{313103421223273} is an apocalyptic number.

It is an amenable number.

313103421223273 is a deficient number, since it is larger than the sum of its proper divisors (1).

313103421223273 is an equidigital number, since it uses as much as digits as its factorization.

313103421223273 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108864, while the sum is 37.

Adding to 313103421223273 its reverse (372322124301313), we get a palindrome (685425545524586).

The spelling of 313103421223273 in words is "three hundred thirteen trillion, one hundred three billion, four hundred twenty-one million, two hundred twenty-three thousand, two hundred seventy-three".