102943393321 has 4 divisors (see below), whose sum is σ = 102960434512. Its totient is φ = 102926352132.

The previous prime is 102943393303. The next prime is 102943393331. The reversal of 102943393321 is 123393349201.

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, and also an emirpimes, since its reverse is a distinct semiprime: 123393349201 = 1753 ⋅70389817.

It is a cyclic number.

It is not a de Polignac number, because 102943393321 - 2⁹ = 102943392809 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102943393331) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8511531 + ... + 8523616.

It is an arithmetic number, because the mean of its divisors is an integer number (25740108628).

Almost surely, 2^102943393321 is an apocalyptic number.

It is an amenable number.

102943393321 is a deficient number, since it is larger than the sum of its proper divisors (17041191).

102943393321 is an equidigital number, since it uses as much as digits as its factorization.

102943393321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17041190.

The product of its (nonzero) digits is 104976, while the sum is 40.

The spelling of 102943393321 in words is "one hundred two billion, nine hundred forty-three million, three hundred ninety-three thousand, three hundred twenty-one".