2121233123303 has 16 divisors (see below), whose sum is σ = 2447097364224. Its totient is φ = 1801079038080.

The previous prime is 2121233123299. The next prime is 2121233123311. The reversal of 2121233123303 is 3033213321212.

It is not a de Polignac number, because 2121233123303 - 2² = 2121233123299 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2121233123003) 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, 11281823 + ... + 11468303.

It is an arithmetic number, because the mean of its divisors is an integer number (152943585264).

Almost surely, 2^{2121233123303} is an apocalyptic number.

2121233123303 is a deficient number, since it is larger than the sum of its proper divisors (325864240921).

2121233123303 is a wasteful number, since it uses less digits than its factorization.

2121233123303 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 201782.

The product of its (nonzero) digits is 3888, while the sum is 26.

Adding to 2121233123303 its reverse (3033213321212), we get a palindrome (5154446444515).

The spelling of 2121233123303 in words is "two trillion, one hundred twenty-one billion, two hundred thirty-three million, one hundred twenty-three thousand, three hundred three".