313355423989 has 2 divisors, whose sum is σ = 313355423990. Its totient is φ = 313355423988.

The previous prime is 313355423971. The next prime is 313355423999. The reversal of 313355423989 is 989324553313.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 305930672100 + 7424751889 = 553110^2 + 86167^2 .

It is a cyclic number.

It is not a de Polignac number, because 313355423989 - 2²¹ = 313353326837 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313355423959) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156677711994 + 156677711995.

It is an arithmetic number, because the mean of its divisors is an integer number (156677711995).

Almost surely, 2^313355423989 is an apocalyptic number.

It is an amenable number.

313355423989 is a deficient number, since it is larger than the sum of its proper divisors (1).

313355423989 is an equidigital number, since it uses as much as digits as its factorization.

313355423989 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 10497600, while the sum is 55.

The spelling of 313355423989 in words is "three hundred thirteen billion, three hundred fifty-five million, four hundred twenty-three thousand, nine hundred eighty-nine".