102103102321 has 4 divisors (see below), whose sum is σ = 111385202544. Its totient is φ = 92821002100.

The previous prime is 102103102319. The next prime is 102103102397. The reversal of 102103102321 is 123201301201.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 102103102321 - 2¹ = 102103102319 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102103102295 and 102103102304.

It is not an unprimeable number, because it can be changed into a prime (102103102021) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 4641050095 + ... + 4641050116.

It is an arithmetic number, because the mean of its divisors is an integer number (27846300636).

Almost surely, 2^102103102321 is an apocalyptic number.

102103102321 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

It is an amenable number.

102103102321 is a deficient number, since it is larger than the sum of its proper divisors (9282100223).

102103102321 is an equidigital number, since it uses as much as digits as its factorization.

102103102321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9282100222.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 102103102321 its reverse (123201301201), we get a palindrome (225304403522).

The spelling of 102103102321 in words is "one hundred two billion, one hundred three million, one hundred two thousand, three hundred twenty-one".