2121001303303 has 16 divisors (see below), whose sum is σ = 2156434348032. Its totient is φ = 2085725320000.

The previous prime is 2121001303301. The next prime is 2121001303307. The reversal of 2121001303303 is 3033031001212.

It is a cyclic number.

It is not a de Polignac number, because 2121001303303 - 2¹ = 2121001303301 is a prime.

It is a super-2 number, since 2×2121001303303² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121001303301) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 163739475 + ... + 163752427.

It is an arithmetic number, because the mean of its divisors is an integer number (134777146752).

Almost surely, 2^{2121001303303} is an apocalyptic number.

2121001303303 is a deficient number, since it is larger than the sum of its proper divisors (35433044729).

2121001303303 is a wasteful number, since it uses less digits than its factorization.

2121001303303 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18806.

The product of its (nonzero) digits is 324, while the sum is 19.

Adding to 2121001303303 its reverse (3033031001212), we get a palindrome (5154032304515).

The spelling of 2121001303303 in words is "two trillion, one hundred twenty-one billion, one million, three hundred three thousand, three hundred three".