351223303322123 has 4 divisors (see below), whose sum is σ = 362553087300288. Its totient is φ = 339893519343960.

The previous prime is 351223303322119. The next prime is 351223303322147. The reversal of 351223303322123 is 321223303322153.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 351223303322123 - 2² = 351223303322119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (351223303322113) 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, 5664891989036 + ... + 5664891989097.

It is an arithmetic number, because the mean of its divisors is an integer number (90638271825072).

Almost surely, 2^{351223303322123} is an apocalyptic number.

351223303322123 is a deficient number, since it is larger than the sum of its proper divisors (11329783978165).

351223303322123 is a wasteful number, since it uses less digits than its factorization.

351223303322123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11329783978164.

The product of its (nonzero) digits is 116640, while the sum is 35.

Adding to 351223303322123 its reverse (321223303322153), we get a palindrome (672446606644276).

The spelling of 351223303322123 in words is "three hundred fifty-one trillion, two hundred twenty-three billion, three hundred three million, three hundred twenty-two thousand, one hundred twenty-three".