2123223544 has 16 divisors (see below), whose sum is σ = 4287278520. Its totient is φ = 979949280.

The previous prime is 2123223539. The next prime is 2123223589. The reversal of 2123223544 is 4453223212.

It is a congruent number.

It is an unprimeable number.

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, 10207702 + ... + 10207909.

Almost surely, 2^2123223544 is an apocalyptic number.

It is an amenable number.

2123223544 is an abundant number, since it is smaller than the sum of its proper divisors (2164054976).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2123223544 is a wasteful number, since it uses less digits than its factorization.

2123223544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20415630 (or 20415626 counting only the distinct ones).

The product of its digits is 11520, while the sum is 28.

The square root of 2123223544 is about 46078.4498871219. The cubic root of 2123223544 is about 1285.2824390896.

Adding to 2123223544 its reverse (4453223212), we get a palindrome (6576446756).

The spelling of 2123223544 in words is "two billion, one hundred twenty-three million, two hundred twenty-three thousand, five hundred forty-four".