2121133310203 has 12 divisors (see below), whose sum is σ = 2275554811392. Its totient is φ = 1976594787200.

The previous prime is 2121133310147. The next prime is 2121133310209. The reversal of 2121133310203 is 3020133311212.

It is not a de Polignac number, because 2121133310203 - 2³⁷ = 1983694356731 is a prime.

It is not an unprimeable number, because it can be changed into a prime (2121133310209) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36305275 + ... + 36363652.

It is an arithmetic number, because the mean of its divisors is an integer number (189629567616).

Almost surely, 2^{2121133310203} is an apocalyptic number.

2121133310203 is a deficient number, since it is larger than the sum of its proper divisors (154421501189).

2121133310203 is a wasteful number, since it uses less digits than its factorization.

2121133310203 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72669062 (or 72669045 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2121133310203 its reverse (3020133311212), we get a palindrome (5141266621415).

The spelling of 2121133310203 in words is "two trillion, one hundred twenty-one billion, one hundred thirty-three million, three hundred ten thousand, two hundred three".