102021331321 has 8 divisors (see below), whose sum is σ = 125564715584. Its totient is φ = 80720174160.

The previous prime is 102021331319. The next prime is 102021331327. The reversal of 102021331321 is 123133120201.

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 102021331321 - 2¹ = 102021331319 is a prime.

It is not an unprimeable number, because it can be changed into a prime (102021331327) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 560556675 + ... + 560556856.

It is an arithmetic number, because the mean of its divisors is an integer number (15695589448).

Almost surely, 2^102021331321 is an apocalyptic number.

It is an amenable number.

102021331321 is a deficient number, since it is larger than the sum of its proper divisors (23543384263).

102021331321 is a wasteful number, since it uses less digits than its factorization.

102021331321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1121113551.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 102021331321 its reverse (123133120201), we get a palindrome (225154451522).

The spelling of 102021331321 in words is "one hundred two billion, twenty-one million, three hundred thirty-one thousand, three hundred twenty-one".