313511293 has 2 divisors, whose sum is σ = 313511294. Its totient is φ = 313511292.

The previous prime is 313511287. The next prime is 313511329. The reversal of 313511293 is 392115313.

Together with next prime (313511329) it forms an Ormiston pair, because they use the same digits, order apart.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 300744964 + 12766329 = 17342^2 + 3573^2 .

It is a cyclic number.

It is not a de Polignac number, because 313511293 - 2²¹ = 311414141 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313511203) 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, 156755646 + 156755647.

It is an arithmetic number, because the mean of its divisors is an integer number (156755647).

Almost surely, 2^313511293 is an apocalyptic number.

It is an amenable number.

313511293 is a deficient number, since it is larger than the sum of its proper divisors (1).

313511293 is an equidigital number, since it uses as much as digits as its factorization.

313511293 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 2430, while the sum is 28.

The square root of 313511293 is about 17706.2501111896. The cubic root of 313511293 is about 679.3356350031.

The spelling of 313511293 in words is "three hundred thirteen million, five hundred eleven thousand, two hundred ninety-three".