351143311505423 has 4 divisors (see below), whose sum is σ = 351143354192400. Its totient is φ = 351143268818448.

The previous prime is 351143311505351. The next prime is 351143311505461. The reversal of 351143311505423 is 324505113341153.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 351143311505423 - 2⁸ = 351143311505167 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (351143311505323) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4654790 + ... + 26906387.

It is an arithmetic number, because the mean of its divisors is an integer number (87785838548100).

Almost surely, 2^{351143311505423} is an apocalyptic number.

351143311505423 is a deficient number, since it is larger than the sum of its proper divisors (42686977).

351143311505423 is a wasteful number, since it uses less digits than its factorization.

351143311505423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 42686976.

The product of its (nonzero) digits is 324000, while the sum is 41.

Adding to 351143311505423 its reverse (324505113341153), we get a palindrome (675648424846576).

The spelling of 351143311505423 in words is "three hundred fifty-one trillion, one hundred forty-three billion, three hundred eleven million, five hundred five thousand, four hundred twenty-three".