2142204231 has 8 divisors (see below), whose sum is σ = 2869081600. Its totient is φ = 1421731512.

The previous prime is 2142204227. The next prime is 2142204247. The reversal of 2142204231 is 1324022412.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 2142204231 - 2² = 2142204227 is a prime.

It is a super-2 number, since 2×2142204231² = 9178077934628602722, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 2142204198 and 2142204207.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142204271) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1600381 + ... + 1601718.

It is an arithmetic number, because the mean of its divisors is an integer number (358635200).

Almost surely, 2^2142204231 is an apocalyptic number.

2142204231 is a deficient number, since it is larger than the sum of its proper divisors (726877369).

2142204231 is a wasteful number, since it uses less digits than its factorization.

2142204231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3202325.

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

The square root of 2142204231 is about 46283.9521972789. The cubic root of 2142204231 is about 1289.1010364446.

Adding to 2142204231 its reverse (1324022412), we get a palindrome (3466226643).

The spelling of 2142204231 in words is "two billion, one hundred forty-two million, two hundred four thousand, two hundred thirty-one".