103103302021 has 4 divisors (see below), whose sum is σ = 103113797292. Its totient is φ = 103092806752.

The previous prime is 103103302009. The next prime is 103103302117. The reversal of 103103302021 is 120203301301.

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 66301100100 + 36802201921 = 257490^2 + 191839^2 .

It is a cyclic number.

It is not a de Polignac number, because 103103302021 - 2¹¹ = 103103299973 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103103301986 and 103103302004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103103302321) 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, 5232886 + ... + 5252551.

It is an arithmetic number, because the mean of its divisors is an integer number (25778449323).

Almost surely, 2^103103302021 is an apocalyptic number.

It is an amenable number.

103103302021 is a deficient number, since it is larger than the sum of its proper divisors (10495271).

103103302021 is an equidigital number, since it uses as much as digits as its factorization.

103103302021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10495270.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 103103302021 its reverse (120203301301), we get a palindrome (223306603322).

The spelling of 103103302021 in words is "one hundred three billion, one hundred three million, three hundred two thousand, twenty-one".