2142123044 has 12 divisors (see below), whose sum is σ = 3750471564. Its totient is φ = 1070559744.

The previous prime is 2142123043. The next prime is 2142123073. The reversal of 2142123044 is 4403212412.

It can be written as a sum of positive squares in 2 ways, for example, as 658948900 + 1483174144 = 25670^2 + 38512^2 .

It is a super-2 number, since 2×2142123044² = 9177382271271651872, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2142123041) 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 3 ways as a sum of consecutive naturals, for example, 115757 + ... + 132980.

It is an arithmetic number, because the mean of its divisors is an integer number (312539297).

Almost surely, 2^2142123044 is an apocalyptic number.

It is an amenable number.

2142123044 is a deficient number, since it is larger than the sum of its proper divisors (1608348520).

2142123044 is a wasteful number, since it uses less digits than its factorization.

2142123044 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 250894 (or 250892 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 2142123044 is about 46283.0751355180. The cubic root of 2142123044 is about 1289.0847511053.

Adding to 2142123044 its reverse (4403212412), we get a palindrome (6545335456).

The spelling of 2142123044 in words is "two billion, one hundred forty-two million, one hundred twenty-three thousand, forty-four".