321000000123 has 96 divisors (see below), whose sum is σ = 493996882176. Its totient is φ = 185090400000.

The previous prime is 321000000121. The next prime is 321000000127.

It is a happy number.

321000000123 is nontrivially palindromic in base 10.

It is not a de Polignac number, because 321000000123 - 2¹ = 321000000121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 321000000099 and 321000000108.

It is not an unprimeable number, because it can be changed into a prime (321000000121) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 112590648 + ... + 112593498.

It is an arithmetic number, because the mean of its divisors is an integer number (5145800856).

Almost surely, 2^321000000123 is an apocalyptic number.

321000000123 is a gapful number since it is divisible by the number (33) formed by its first and last digit.

321000000123 is a deficient number, since it is larger than the sum of its proper divisors (172996882053).

321000000123 is a wasteful number, since it uses less digits than its factorization.

321000000123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3097 (or 3086 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 12.

It can be divided in two parts, 321000000 and 123, that added together give a palindrome (321000123).

The spelling of 321000000123 in words is "three hundred twenty-one billion, one hundred twenty-three", and thus it is an aban number.