321355343553123 has 24 divisors (see below), whose sum is σ = 470983509844624. Its totient is φ = 194754011696640.

The previous prime is 321355343553071. The next prime is 321355343553143.

321355343553123 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 321355343553123 - 2²² = 321355339358819 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321355343553143) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 5043586 + ... + 25848567.

Almost surely, 2^{321355343553123} is an apocalyptic number.

321355343553123 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

321355343553123 is a deficient number, since it is larger than the sum of its proper divisors (149628166291501).

321355343553123 is a wasteful number, since it uses less digits than its factorization.

321355343553123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30920835 (or 30920824 counting only the distinct ones).

The product of its digits is 7290000, while the sum is 48.

The spelling of 321355343553123 in words is "three hundred twenty-one trillion, three hundred fifty-five billion, three hundred forty-three million, five hundred fifty-three thousand, one hundred twenty-three".