102102321 has 8 divisors (see below), whose sum is σ = 136530144. Its totient is φ = 67871360.

The previous prime is 102102307. The next prime is 102102337. The reversal of 102102321 is 123201201.

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 102102321 - 2¹⁰ = 102101297 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102102297 and 102102306.

It is not an unprimeable number, because it can be changed into a prime (102106321) 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, 48000 + ... + 50081.

It is an arithmetic number, because the mean of its divisors is an integer number (17066268).

Almost surely, 2^102102321 is an apocalyptic number.

It is an amenable number.

102102321 is a deficient number, since it is larger than the sum of its proper divisors (34427823).

102102321 is an equidigital number, since it uses as much as digits as its factorization.

102102321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 98431.

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 102102321 is about 10104.5693129396. The cubic root of 102102321 is about 467.3890550500.

Adding to 102102321 its reverse (123201201), we get a palindrome (225303522).

The spelling of 102102321 in words is "one hundred two million, one hundred two thousand, three hundred twenty-one".