102042441321 has 4 divisors (see below), whose sum is σ = 136056588432. Its totient is φ = 68028294212.

The previous prime is 102042441311. The next prime is 102042441323. The reversal of 102042441321 is 123144240201.

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 102042441321 - 2⁵ = 102042441289 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 102042441291 and 102042441300.

It is not an unprimeable number, because it can be changed into a prime (102042441323) 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, 17007073551 + ... + 17007073556.

It is an arithmetic number, because the mean of its divisors is an integer number (34014147108).

Almost surely, 2^102042441321 is an apocalyptic number.

It is an amenable number.

102042441321 is a deficient number, since it is larger than the sum of its proper divisors (34014147111).

102042441321 is an equidigital number, since it uses as much as digits as its factorization.

102042441321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34014147110.

The product of its (nonzero) digits is 1536, while the sum is 24.

Adding to 102042441321 its reverse (123144240201), we get a palindrome (225186681522).

The spelling of 102042441321 in words is "one hundred two billion, forty-two million, four hundred forty-one thousand, three hundred twenty-one".