2103030550421 has 4 divisors (see below), whose sum is σ = 2131839188172. Its totient is φ = 2074221912672.

The previous prime is 2103030550403. The next prime is 2103030550427. The reversal of 2103030550421 is 1240550303012.

It is a happy number.

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 419560630225 + 1683469920196 = 647735^2 + 1297486^2 .

It is a cyclic number.

It is not a de Polignac number, because 2103030550421 - 2³⁴ = 2085850681237 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 (2103030550427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 14404318766 + ... + 14404318911.

It is an arithmetic number, because the mean of its divisors is an integer number (532959797043).

Almost surely, 2^{2103030550421} is an apocalyptic number.

It is an amenable number.

2103030550421 is a deficient number, since it is larger than the sum of its proper divisors (28808637751).

2103030550421 is an equidigital number, since it uses as much as digits as its factorization.

2103030550421 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28808637750.

The product of its (nonzero) digits is 3600, while the sum is 26.

Adding to 2103030550421 its reverse (1240550303012), we get a palindrome (3343580853433).

The spelling of 2103030550421 in words is "two trillion, one hundred three billion, thirty million, five hundred fifty thousand, four hundred twenty-one".