2123303133121 has 32 divisors (see below), whose sum is σ = 2238692594688. Its totient is φ = 2009976534720.

The previous prime is 2123303133109. The next prime is 2123303133131. The reversal of 2123303133121 is 1213313033212.

It is a cyclic number.

It is not a de Polignac number, because 2123303133121 - 2¹¹ = 2123303131073 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2123303133131) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 784373650 + ... + 784376356.

It is an arithmetic number, because the mean of its divisors is an integer number (69959143584).

Almost surely, 2^{2123303133121} is an apocalyptic number.

It is an amenable number.

2123303133121 is a deficient number, since it is larger than the sum of its proper divisors (115389461567).

2123303133121 is a wasteful number, since it uses less digits than its factorization.

2123303133121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 3781.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 2123303133121 its reverse (1213313033212), we get a palindrome (3336616166333).

Subtracting from 2123303133121 its reverse (1213313033212), we obtain a palindrome (909990099909).

The spelling of 2123303133121 in words is "two trillion, one hundred twenty-three billion, three hundred three million, one hundred thirty-three thousand, one hundred twenty-one".