2121444404203 has 8 divisors (see below), whose sum is σ = 2161179408960. Its totient is φ = 2081835343560.

The previous prime is 2121444404171. The next prime is 2121444404227. The reversal of 2121444404203 is 3024044441212.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 2121444404203 - 2⁵ = 2121444404171 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121444404243) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 31452025 + ... + 31519402.

It is an arithmetic number, because the mean of its divisors is an integer number (270147426120).

Almost surely, 2^{2121444404203} is an apocalyptic number.

2121444404203 is a deficient number, since it is larger than the sum of its proper divisors (39735004757).

2121444404203 is an equidigital number, since it uses as much as digits as its factorization.

2121444404203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 62972057.

The product of its (nonzero) digits is 24576, while the sum is 31.

Adding to 2121444404203 its reverse (3024044441212), we get a palindrome (5145488845415).

The spelling of 2121444404203 in words is "two trillion, one hundred twenty-one billion, four hundred forty-four million, four hundred four thousand, two hundred three".