321220003424123 has 16 divisors (see below), whose sum is σ = 326814600860640. Its totient is φ = 315630431821824.

The previous prime is 321220003424113. The next prime is 321220003424161. The reversal of 321220003424123 is 321424300022123.

It is a cyclic number.

It is not a de Polignac number, because 321220003424123 - 2³⁶ = 321151283947387 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (321220003424113) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2117769815 + ... + 2117921487.

It is an arithmetic number, because the mean of its divisors is an integer number (20425912553790).

Almost surely, 2^{321220003424123} is an apocalyptic number.

321220003424123 is a deficient number, since it is larger than the sum of its proper divisors (5594597436517).

321220003424123 is a wasteful number, since it uses less digits than its factorization.

321220003424123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 167998.

The product of its (nonzero) digits is 13824, while the sum is 29.

Adding to 321220003424123 its reverse (321424300022123), we get a palindrome (642644303446246).

The spelling of 321220003424123 in words is "three hundred twenty-one trillion, two hundred twenty billion, three million, four hundred twenty-four thousand, one hundred twenty-three".