2142322231 has 16 divisors (see below), whose sum is σ = 2460672000. Its totient is φ = 1827076608.

The previous prime is 2142322183. The next prime is 2142322243. The reversal of 2142322231 is 1322232412.

It is not a de Polignac number, because 2142322231 - 2¹⁷ = 2142191159 is a prime.

It is a super-2 number, since 2×2142322231² = 9179089082873634722, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2142322271) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1504786 + ... + 1506208.

It is an arithmetic number, because the mean of its divisors is an integer number (153792000).

Almost surely, 2^2142322231 is an apocalyptic number.

2142322231 is a deficient number, since it is larger than the sum of its proper divisors (318349769).

2142322231 is a wasteful number, since it uses less digits than its factorization.

2142322231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2358.

The product of its digits is 1152, while the sum is 22.

The square root of 2142322231 is about 46285.2269196123. The cubic root of 2142322231 is about 1289.1247053875.

Adding to 2142322231 its reverse (1322232412), we get a palindrome (3464554643).

The spelling of 2142322231 in words is "two billion, one hundred forty-two million, three hundred twenty-two thousand, two hundred thirty-one".