313321144109 has 2 divisors, whose sum is σ = 313321144110. Its totient is φ = 313321144108.

The previous prime is 313321144079. The next prime is 313321144177. The reversal of 313321144109 is 901441123313.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 299679604900 + 13641539209 = 547430^2 + 116797^2 .

It is a cyclic number.

It is not a de Polignac number, because 313321144109 - 2⁸ = 313321143853 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313321144009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156660572054 + 156660572055.

It is an arithmetic number, because the mean of its divisors is an integer number (156660572055).

Almost surely, 2^313321144109 is an apocalyptic number.

It is an amenable number.

313321144109 is a deficient number, since it is larger than the sum of its proper divisors (1).

313321144109 is an equidigital number, since it uses as much as digits as its factorization.

313321144109 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 7776, while the sum is 32.

The spelling of 313321144109 in words is "three hundred thirteen billion, three hundred twenty-one million, one hundred forty-four thousand, one hundred nine".