2042412123 has 4 divisors (see below), whose sum is σ = 2723216168. Its totient is φ = 1361608080.

The previous prime is 2042412109. The next prime is 2042412131. The reversal of 2042412123 is 3212142402.

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

It is not a de Polignac number, because 2042412123 - 2¹³ = 2042403931 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 2042412123.

It is not an unprimeable number, because it can be changed into a prime (2042412143) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 340402018 + ... + 340402023.

It is an arithmetic number, because the mean of its divisors is an integer number (680804042).

Almost surely, 2^2042412123 is an apocalyptic number.

2042412123 is a deficient number, since it is larger than the sum of its proper divisors (680804045).

2042412123 is an equidigital number, since it uses as much as digits as its factorization.

2042412123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 680804044.

The product of its (nonzero) digits is 768, while the sum is 21.

The square root of 2042412123 is about 45193.0539242481. The cubic root of 2042412123 is about 1268.7648153511.

Adding to 2042412123 its reverse (3212142402), we get a palindrome (5254554525).

The spelling of 2042412123 in words is "two billion, forty-two million, four hundred twelve thousand, one hundred twenty-three".