321012100121 has 8 divisors (see below), whose sum is σ = 340604766720. Its totient is φ = 301498278208.

The previous prime is 321012100103. The next prime is 321012100133. The reversal of 321012100121 is 121001210123.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 321012100121 - 2¹⁰ = 321012099097 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 321012100096 and 321012100105.

It is not an unprimeable number, because it can be changed into a prime (321012100181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 19702781 + ... + 19719066.

It is an arithmetic number, because the mean of its divisors is an integer number (42575595840).

Almost surely, 2^321012100121 is an apocalyptic number.

It is an amenable number.

321012100121 is a deficient number, since it is larger than the sum of its proper divisors (19592666599).

321012100121 is a wasteful number, since it uses less digits than its factorization.

321012100121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 39422343.

The product of its (nonzero) digits is 24, while the sum is 14.

Adding to 321012100121 its reverse (121001210123), we get a palindrome (442013310244).

The spelling of 321012100121 in words is "three hundred twenty-one billion, twelve million, one hundred thousand, one hundred twenty-one".