321404121404123 has 4 divisors (see below), whose sum is σ = 321410903703120. Its totient is φ = 321397339105128.

The previous prime is 321404121404101. The next prime is 321404121404147.

321404121404123 is nontrivially palindromic in base 10.

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 321404121404123 - 2¹⁸ = 321404121141979 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 321404121404123.

It is not an unprimeable number, because it can be changed into a prime (321404121404153) 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, 3391078415 + ... + 3391173192.

It is an arithmetic number, because the mean of its divisors is an integer number (80352725925780).

Almost surely, 2^{321404121404123} is an apocalyptic number.

321404121404123 is a deficient number, since it is larger than the sum of its proper divisors (6782298997).

321404121404123 is an equidigital number, since it uses as much as digits as its factorization.

321404121404123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6782298996.

The product of its (nonzero) digits is 18432, while the sum is 32.

The spelling of 321404121404123 in words is "three hundred twenty-one trillion, four hundred four billion, one hundred twenty-one million, four hundred four thousand, one hundred twenty-three".