102753263821 has 4 divisors (see below), whose sum is σ = 110657361052. Its totient is φ = 94849166592.

The previous prime is 102753263791. The next prime is 102753263849. The reversal of 102753263821 is 128362357201.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 12641629225 + 90111634596 = 112435^2 + 300186^2 .

It is a cyclic number.

It is not a de Polignac number, because 102753263821 - 2¹¹ = 102753261773 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102753263521) 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, 3952048596 + ... + 3952048621.

It is an arithmetic number, because the mean of its divisors is an integer number (27664340263).

Almost surely, 2^102753263821 is an apocalyptic number.

It is an amenable number.

102753263821 is a deficient number, since it is larger than the sum of its proper divisors (7904097231).

102753263821 is an equidigital number, since it uses as much as digits as its factorization.

102753263821 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7904097230.

The product of its (nonzero) digits is 120960, while the sum is 40.

The spelling of 102753263821 in words is "one hundred two billion, seven hundred fifty-three million, two hundred sixty-three thousand, eight hundred twenty-one".