2121203003043 has 8 divisors (see below), whose sum is σ = 2828290988800. Its totient is φ = 1414125176328.

The previous prime is 2121203002999. The next prime is 2121203003047. The reversal of 2121203003043 is 3403003021212.

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

It is not a de Polignac number, because 2121203003043 - 2¹⁰ = 2121203002019 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2121203003047) 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 7 ways as a sum of consecutive naturals, for example, 2038423 + ... + 2897856.

It is an arithmetic number, because the mean of its divisors is an integer number (353536373600).

Almost surely, 2^{2121203003043} is an apocalyptic number.

2121203003043 is a deficient number, since it is larger than the sum of its proper divisors (707087985757).

2121203003043 is a wasteful number, since it uses less digits than its factorization.

2121203003043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5079521.

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 2121203003043 its reverse (3403003021212), we get a palindrome (5524206024255).

The spelling of 2121203003043 in words is "two trillion, one hundred twenty-one billion, two hundred three million, three thousand, forty-three".