2142142203 has 4 divisors (see below), whose sum is σ = 2856189608. Its totient is φ = 1428094800.

The previous prime is 2142142199. The next prime is 2142142259. The reversal of 2142142203 is 3022412412.

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

It is not a de Polignac number, because 2142142203 - 2² = 2142142199 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 2142142203.

It is not an unprimeable number, because it can be changed into a prime (2142842203) 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, 357023698 + ... + 357023703.

It is an arithmetic number, because the mean of its divisors is an integer number (714047402).

Almost surely, 2^2142142203 is an apocalyptic number.

2142142203 is a deficient number, since it is larger than the sum of its proper divisors (714047405).

2142142203 is an equidigital number, since it uses as much as digits as its factorization.

2142142203 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 714047404.

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

The square root of 2142142203 is about 46283.2821113628. The cubic root of 2142142203 is about 1289.0885942554.

Adding to 2142142203 its reverse (3022412412), we get a palindrome (5164554615).

The spelling of 2142142203 in words is "two billion, one hundred forty-two million, one hundred forty-two thousand, two hundred three".