321130210302121 has 16 divisors (see below), whose sum is σ = 370980108527040. Its totient is φ = 274727552212480.

The previous prime is 321130210302113. The next prime is 321130210302211. The reversal of 321130210302121 is 121203012031123.

It is a cyclic number.

It is not a de Polignac number, because 321130210302121 - 2³ = 321130210302113 is a prime.

It is a super-2 number, since 2×321130210302121² (a number of 30 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 321130210302092 and 321130210302101.

It is not an unprimeable number, because it can be changed into a prime (321130210302721) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 111904591 + ... + 114738388.

It is an arithmetic number, because the mean of its divisors is an integer number (23186256782940).

Almost surely, 2^{321130210302121} is an apocalyptic number.

It is an amenable number.

321130210302121 is a deficient number, since it is larger than the sum of its proper divisors (49849898224919).

321130210302121 is a wasteful number, since it uses less digits than its factorization.

321130210302121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 226650584.

The product of its (nonzero) digits is 432, while the sum is 22.

Adding to 321130210302121 its reverse (121203012031123), we get a palindrome (442333222333244).

The spelling of 321130210302121 in words is "three hundred twenty-one trillion, one hundred thirty billion, two hundred ten million, three hundred two thousand, one hundred twenty-one".