2121343132223 has 4 divisors (see below), whose sum is σ = 2424392151120. Its totient is φ = 1818294113328.

The previous prime is 2121343132213. The next prime is 2121343132243. The reversal of 2121343132223 is 3222313431212.

It is a semiprime because it is the product of two primes.

It is not a de Polignac number, because 2121343132223 - 2²⁴ = 2121326355007 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 (2121343132213) 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, 151524509438 + ... + 151524509451.

It is an arithmetic number, because the mean of its divisors is an integer number (606098037780).

Almost surely, 2^{2121343132223} is an apocalyptic number.

2121343132223 is a deficient number, since it is larger than the sum of its proper divisors (303049018897).

2121343132223 is an equidigital number, since it uses as much as digits as its factorization.

2121343132223 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 303049018896.

The product of its digits is 10368, while the sum is 29.

Adding to 2121343132223 its reverse (3222313431212), we get a palindrome (5343656563435).

The spelling of 2121343132223 in words is "two trillion, one hundred twenty-one billion, three hundred forty-three million, one hundred thirty-two thousand, two hundred twenty-three".