102020330321 has 16 divisors (see below), whose sum is σ = 125810227200. Its totient is φ = 80560761408.

The previous prime is 102020330261. The next prime is 102020330353. The reversal of 102020330321 is 123033020201.

It is a cyclic number.

It is not a de Polignac number, because 102020330321 - 2¹⁴ = 102020313937 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 102020330321.

It is not an unprimeable number, because it can be changed into a prime (102020330221) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1054961 + ... + 1147598.

It is an arithmetic number, because the mean of its divisors is an integer number (7863139200).

Almost surely, 2^102020330321 is an apocalyptic number.

It is an amenable number.

102020330321 is a deficient number, since it is larger than the sum of its proper divisors (23789896879).

102020330321 is a wasteful number, since it uses less digits than its factorization.

102020330321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2203088.

The product of its (nonzero) digits is 216, while the sum is 17.

Adding to 102020330321 its reverse (123033020201), we get a palindrome (225053350522).

The spelling of 102020330321 in words is "one hundred two billion, twenty million, three hundred thirty thousand, three hundred twenty-one".