2121023003333 has 4 divisors (see below), whose sum is σ = 2284178618988. Its totient is φ = 1957867387680.

The previous prime is 2121023003321. The next prime is 2121023003447. The reversal of 2121023003333 is 3333003201212.

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 309366226849 + 1811656776484 = 556207^2 + 1345978^2 .

It is a cyclic number.

It is not a de Polignac number, because 2121023003333 - 2²⁴ = 2121006226117 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2121023003299 and 2121023003308.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121023000333) 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, 81577807808 + ... + 81577807833.

It is an arithmetic number, because the mean of its divisors is an integer number (571044654747).

Almost surely, 2^{2121023003333} is an apocalyptic number.

It is an amenable number.

2121023003333 is a deficient number, since it is larger than the sum of its proper divisors (163155615655).

2121023003333 is a wasteful number, since it uses less digits than its factorization.

2121023003333 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163155615654.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 2121023003333 its reverse (3333003201212), we get a palindrome (5454026204545).

The spelling of 2121023003333 in words is "two trillion, one hundred twenty-one billion, twenty-three million, three thousand, three hundred thirty-three".