2123342553 has 4 divisors (see below), whose sum is σ = 2831123408. Its totient is φ = 1415561700.

The previous prime is 2123342531. The next prime is 2123342567. The reversal of 2123342553 is 3552433212.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 2123342553 - 2⁸ = 2123342297 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2123342553.

It is not an unprimeable number, because it can be changed into a prime (2123340553) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 353890423 + ... + 353890428.

It is an arithmetic number, because the mean of its divisors is an integer number (707780852).

Almost surely, 2^2123342553 is an apocalyptic number.

It is an amenable number.

2123342553 is a deficient number, since it is larger than the sum of its proper divisors (707780855).

2123342553 is an equidigital number, since it uses as much as digits as its factorization.

2123342553 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707780854.

The product of its digits is 21600, while the sum is 30.

The square root of 2123342553 is about 46079.7412427631. The cubic root of 2123342553 is about 1285.3064524694.

Adding to 2123342553 its reverse (3552433212), we get a palindrome (5675775765).

The spelling of 2123342553 in words is "two billion, one hundred twenty-three million, three hundred forty-two thousand, five hundred fifty-three".