2124402142 has 4 divisors (see below), whose sum is σ = 3186603216. Its totient is φ = 1062201070.

The previous prime is 2124402041. The next prime is 2124402149. The reversal of 2124402142 is 2412044212.

It is a semiprime because it is the product of two primes.

It is a Smith number, since the sum of its digits (22) coincides with the sum of the digits of its prime factors. Since it is squarefree, it is also a hoax number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2124402149) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 531100534 + ... + 531100537.

It is an arithmetic number, because the mean of its divisors is an integer number (796650804).

Almost surely, 2^2124402142 is an apocalyptic number.

2124402142 is a deficient number, since it is larger than the sum of its proper divisors (1062201074).

2124402142 is a wasteful number, since it uses less digits than its factorization.

2124402142 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062201073.

The product of its (nonzero) digits is 1024, while the sum is 22.

The square root of 2124402142 is about 46091.2371498097. The cubic root of 2124402142 is about 1285.5202145088.

Adding to 2124402142 its reverse (2412044212), we get a palindrome (4536446354).

The spelling of 2124402142 in words is "two billion, one hundred twenty-four million, four hundred two thousand, one hundred forty-two".