351313121543 has 2 divisors, whose sum is σ = 351313121544. Its totient is φ = 351313121542.

The previous prime is 351313121521. The next prime is 351313121557. The reversal of 351313121543 is 345121313153.

It is a strong prime.

It is an emirp because it is prime and its reverse (345121313153) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 351313121543 - 2¹² = 351313117447 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (351313121573) 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, 175656560771 + 175656560772.

It is an arithmetic number, because the mean of its divisors is an integer number (175656560772).

Almost surely, 2^351313121543 is an apocalyptic number.

351313121543 is a deficient number, since it is larger than the sum of its proper divisors (1).

351313121543 is an equidigital number, since it uses as much as digits as its factorization.

351313121543 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 16200, while the sum is 32.

Adding to 351313121543 its reverse (345121313153), we get a palindrome (696434434696).

The spelling of 351313121543 in words is "three hundred fifty-one billion, three hundred thirteen million, one hundred twenty-one thousand, five hundred forty-three".