313433320073 has 2 divisors, whose sum is σ = 313433320074. Its totient is φ = 313433320072.

The previous prime is 313433319971. The next prime is 313433320093. The reversal of 313433320073 is 370023334313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 312093174409 + 1340145664 = 558653^2 + 36608^2 .

It is a cyclic number.

It is not a de Polignac number, because 313433320073 - 2¹⁰ = 313433319049 is a prime.

It is a super-2 number, since 2×313433320073² (a number of 24 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (313433320093) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156716660036 + 156716660037.

It is an arithmetic number, because the mean of its divisors is an integer number (156716660037).

Almost surely, 2^313433320073 is an apocalyptic number.

It is an amenable number.

313433320073 is a deficient number, since it is larger than the sum of its proper divisors (1).

313433320073 is an equidigital number, since it uses as much as digits as its factorization.

313433320073 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 40824, while the sum is 32.

Adding to 313433320073 its reverse (370023334313), we get a palindrome (683456654386).

The spelling of 313433320073 in words is "three hundred thirteen billion, four hundred thirty-three million, three hundred twenty thousand, seventy-three".