102302105130021 has 4 divisors (see below), whose sum is σ = 136402806840032. Its totient is φ = 68201403420012.

The previous prime is 102302105129947. The next prime is 102302105130037. The reversal of 102302105130021 is 120031501203201.

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 not a de Polignac number, because 102302105130021 - 2²⁷ = 102301970912293 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 102302105130021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102302105130061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 17050350855001 + ... + 17050350855006.

It is an arithmetic number, because the mean of its divisors is an integer number (34100701710008).

Almost surely, 2^{102302105130021} is an apocalyptic number.

It is an amenable number.

102302105130021 is a deficient number, since it is larger than the sum of its proper divisors (34100701710011).

102302105130021 is an equidigital number, since it uses as much as digits as its factorization.

102302105130021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 34100701710010.

The product of its (nonzero) digits is 360, while the sum is 21.

Adding to 102302105130021 its reverse (120031501203201), we get a palindrome (222333606333222).

The spelling of 102302105130021 in words is "one hundred two trillion, three hundred two billion, one hundred five million, one hundred thirty thousand, twenty-one".