2143322331 has 8 divisors (see below), whose sum is σ = 2859971664. Its totient is φ = 1427777280.

The previous prime is 2143322327. The next prime is 2143322333. The reversal of 2143322331 is 1332233412.

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

It is not a de Polignac number, because 2143322331 - 2² = 2143322327 is a prime.

It is a super-2 number, since 2×2143322331² = 9187661229126547122, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (2143322333) 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, 271530 + ... + 279311.

It is an arithmetic number, because the mean of its divisors is an integer number (357496458).

Almost surely, 2^2143322331 is an apocalyptic number.

2143322331 is a deficient number, since it is larger than the sum of its proper divisors (716649333).

2143322331 is a wasteful number, since it uses less digits than its factorization.

2143322331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 552141.

The product of its digits is 2592, while the sum is 24.

The square root of 2143322331 is about 46296.0293221784. The cubic root of 2143322331 is about 1289.3252748180.

Adding to 2143322331 its reverse (1332233412), we get a palindrome (3475555743).

The spelling of 2143322331 in words is "two billion, one hundred forty-three million, three hundred twenty-two thousand, three hundred thirty-one".