2123115442 has 32 divisors (see below), whose sum is σ = 3836764800. Its totient is φ = 860761728.

The previous prime is 2123115439. The next prime is 2123115469. The reversal of 2123115442 is 2445113212.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 189534 + ... + 200422.

It is an arithmetic number, because the mean of its divisors is an integer number (119898900).

Almost surely, 2^2123115442 is an apocalyptic number.

2123115442 is a deficient number, since it is larger than the sum of its proper divisors (1713649358).

2123115442 is a wasteful number, since it uses less digits than its factorization.

2123115442 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11650.

The product of its digits is 1920, while the sum is 25.

The square root of 2123115442 is about 46077.2768509598. The cubic root of 2123115442 is about 1285.2606257230.

Adding to 2123115442 its reverse (2445113212), we get a palindrome (4568228654).

The spelling of 2123115442 in words is "two billion, one hundred twenty-three million, one hundred fifteen thousand, four hundred forty-two".