102403010221 has 4 divisors (see below), whose sum is σ = 102499526844. Its totient is φ = 102306493600.

The previous prime is 102403010201. The next prime is 102403010231. The reversal of 102403010221 is 122010304201.

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 33861152196 + 68541858025 = 184014^2 + 261805^2 .

It is a cyclic number.

It is not a de Polignac number, because 102403010221 - 2¹⁷ = 102402879149 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 102403010195 and 102403010204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (102403010201) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 48256720 + ... + 48258841.

It is an arithmetic number, because the mean of its divisors is an integer number (25624881711).

Almost surely, 2^102403010221 is an apocalyptic number.

It is an amenable number.

102403010221 is a deficient number, since it is larger than the sum of its proper divisors (96516623).

102403010221 is an equidigital number, since it uses as much as digits as its factorization.

102403010221 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 96516622.

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 102403010221 its reverse (122010304201), we get a palindrome (224413314422).

The spelling of 102403010221 in words is "one hundred two billion, four hundred three million, ten thousand, two hundred twenty-one".