313223121303511 has 2 divisors, whose sum is σ = 313223121303512. Its totient is φ = 313223121303510.

The previous prime is 313223121303413. The next prime is 313223121303571. The reversal of 313223121303511 is 115303121322313.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 313223121303511 - 2¹⁵ = 313223121270743 is a prime.

It is a super-2 number, since 2×313223121303511² (a number of 30 digits) contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (313223121303571) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (31) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 156611560651755 + 156611560651756.

It is an arithmetic number, because the mean of its divisors is an integer number (156611560651756).

Almost surely, 2^{313223121303511} is an apocalyptic number.

313223121303511 is a deficient number, since it is larger than the sum of its proper divisors (1).

313223121303511 is an equidigital number, since it uses as much as digits as its factorization.

313223121303511 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 9720, while the sum is 31.

Adding to 313223121303511 its reverse (115303121322313), we get a palindrome (428526242625824).

The spelling of 313223121303511 in words is "three hundred thirteen trillion, two hundred twenty-three billion, one hundred twenty-one million, three hundred three thousand, five hundred eleven".