2121023323 has 2 divisors, whose sum is σ = 2121023324. Its totient is φ = 2121023322.

The previous prime is 2121023291. The next prime is 2121023327. The reversal of 2121023323 is 3233201212.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2121023323 - 2⁵ = 2121023291 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 2121023323.

It is not a weakly prime, because it can be changed into another prime (2121023327) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060511661 + 1060511662.

It is an arithmetic number, because the mean of its divisors is an integer number (1060511662).

Almost surely, 2^2121023323 is an apocalyptic number.

2121023323 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121023323 is an equidigital number, since it uses as much as digits as its factorization.

2121023323 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 2121023323 is about 46054.5689698644. The cubic root of 2121023323 is about 1284.8383214956.

Adding to 2121023323 its reverse (3233201212), we get a palindrome (5354224535).

The spelling of 2121023323 in words is "two billion, one hundred twenty-one million, twenty-three thousand, three hundred twenty-three".