2123011442 has 16 divisors (see below), whose sum is σ = 3375431352. Its totient is φ = 998000640.

The previous prime is 2123011441. The next prime is 2123011453. The reversal of 2123011442 is 2441103212.

It can be written as a sum of positive squares in 4 ways, for example, as 1993711801 + 129299641 = 44651^2 + 11371^2 .

It is not an unprimeable number, because it can be changed into a prime (2123011441) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 359 + ... + 65162.

Almost surely, 2^2123011442 is an apocalyptic number.

2123011442 is a deficient number, since it is larger than the sum of its proper divisors (1252419910).

2123011442 is a wasteful number, since it uses less digits than its factorization.

2123011442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66493.

The product of its (nonzero) digits is 384, while the sum is 20.

The square root of 2123011442 is about 46076.1482982248. The cubic root of 2123011442 is about 1285.2396393799.

Adding to 2123011442 its reverse (2441103212), we get a palindrome (4564114654).

The spelling of 2123011442 in words is "two billion, one hundred twenty-three million, eleven thousand, four hundred forty-two".