611320313 has 2 divisors, whose sum is σ = 611320314. Its totient is φ = 611320312.

The previous prime is 611320273. The next prime is 611320337. The reversal of 611320313 is 313023116.

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., 310887424 + 300432889 = 17632^2 + 17333^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-611320313 is a prime.

It is not a weakly prime, because it can be changed into another prime (611320343) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 305660156 + 305660157.

It is an arithmetic number, because the mean of its divisors is an integer number (305660157).

Almost surely, 2^611320313 is an apocalyptic number.

It is an amenable number.

611320313 is a deficient number, since it is larger than the sum of its proper divisors (1).

611320313 is an equidigital number, since it uses as much as digits as its factorization.

611320313 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 324, while the sum is 20.

The square root of 611320313 is about 24724.8925781286. The cubic root of 611320313 is about 848.7040519025.

Adding to 611320313 its reverse (313023116), we get a palindrome (924343429).

The spelling of 611320313 in words is "six hundred eleven million, three hundred twenty thousand, three hundred thirteen".