2124042403 has 4 divisors (see below), whose sum is σ = 2427477040. Its totient is φ = 1820607768.

The previous prime is 2124042391. The next prime is 2124042419. The reversal of 2124042403 is 3042404212.

It is a happy number.

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

It is not a de Polignac number, because 2124042403 - 2⁹ = 2124041891 is a prime.

It is a super-4 number, since 4×2124042403⁴ (a number of 38 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2124042803) 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, 151717308 + ... + 151717321.

It is an arithmetic number, because the mean of its divisors is an integer number (606869260).

Almost surely, 2^2124042403 is an apocalyptic number.

2124042403 is a deficient number, since it is larger than the sum of its proper divisors (303434637).

2124042403 is an equidigital number, since it uses as much as digits as its factorization.

2124042403 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 303434636.

The product of its (nonzero) digits is 1536, while the sum is 22.

The square root of 2124042403 is about 46087.3345182817. The cubic root of 2124042403 is about 1285.4476485457.

Adding to 2124042403 its reverse (3042404212), we get a palindrome (5166446615).

The spelling of 2124042403 in words is "two billion, one hundred twenty-four million, forty-two thousand, four hundred three".