321000121000123 has 4 divisors (see below), whose sum is σ = 321004995709048. Its totient is φ = 320995246291200.

The previous prime is 321000121000049. The next prime is 321000121000147.

321000121000123 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 321000121000123 - 2⁹ = 321000120999611 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321000121000097 and 321000121000106.

It is not an unprimeable number, because it can be changed into a prime (321000121000183) 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, 2437255686 + ... + 2437387387.

It is an arithmetic number, because the mean of its divisors is an integer number (80251248927262).

Almost surely, 2^{321000121000123} is an apocalyptic number.

321000121000123 is a deficient number, since it is larger than the sum of its proper divisors (4874708925).

321000121000123 is an equidigital number, since it uses as much as digits as its factorization.

321000121000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4874708924.

The product of its (nonzero) digits is 72, while the sum is 16.

The spelling of 321000121000123 in words is "three hundred twenty-one trillion, one hundred twenty-one million, one hundred twenty-three", and thus it is an aban number.