2103030301021 has 4 divisors (see below), whose sum is σ = 2264801862652. Its totient is φ = 1941258739392.

The previous prime is 2103030301019. The next prime is 2103030301051. The reversal of 2103030301021 is 1201030303012.

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 93199541796 + 2009830759225 = 305286^2 + 1417685^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103030301021 - 2¹ = 2103030301019 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2103030300986 and 2103030301004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2103030301051) 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, 80885780796 + ... + 80885780821.

It is an arithmetic number, because the mean of its divisors is an integer number (566200465663).

Almost surely, 2^{2103030301021} is an apocalyptic number.

It is an amenable number.

2103030301021 is a deficient number, since it is larger than the sum of its proper divisors (161771561631).

2103030301021 is a wasteful number, since it uses less digits than its factorization.

2103030301021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 161771561630.

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

Adding to 2103030301021 its reverse (1201030303012), we get a palindrome (3304060604033).

The spelling of 2103030301021 in words is "two trillion, one hundred three billion, thirty million, three hundred one thousand, twenty-one".