102432311321 has 4 divisors (see below), whose sum is σ = 102432962100. Its totient is φ = 102431660544.

The previous prime is 102432311299. The next prime is 102432311351. The reversal of 102432311321 is 123113234201.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It can be written as a sum of positive squares in 2 ways, for example, as 47611240000 + 54821071321 = 218200^2 + 234139^2 .

It is a cyclic number.

It is not a de Polignac number, because 102432311321 - 2⁶ = 102432311257 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (102432311351) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 74645 + ... + 458733.

It is an arithmetic number, because the mean of its divisors is an integer number (25608240525).

Almost surely, 2^102432311321 is an apocalyptic number.

It is an amenable number.

102432311321 is a deficient number, since it is larger than the sum of its proper divisors (650779).

102432311321 is an equidigital number, since it uses as much as digits as its factorization.

102432311321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 650778.

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 102432311321 its reverse (123113234201), we get a palindrome (225545545522).

The spelling of 102432311321 in words is "one hundred two billion, four hundred thirty-two million, three hundred eleven thousand, three hundred twenty-one".