2143431233 has 8 divisors (see below), whose sum is σ = 2237437440. Its totient is φ = 2050979040.

The previous prime is 2143431229. The next prime is 2143431253. The reversal of 2143431233 is 3321343412.

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

It is a cyclic number.

It is not a de Polignac number, because 2143431233 - 2² = 2143431229 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (2143431253) 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, 385685 + ... + 391202.

It is an arithmetic number, because the mean of its divisors is an integer number (279679680).

Almost surely, 2^2143431233 is an apocalyptic number.

It is an amenable number.

2143431233 is a deficient number, since it is larger than the sum of its proper divisors (94006207).

2143431233 is an equidigital number, since it uses as much as digits as its factorization.

2143431233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 777007.

The product of its digits is 5184, while the sum is 26.

The square root of 2143431233 is about 46297.2054556212. The cubic root of 2143431233 is about 1289.3471112789.

Adding to 2143431233 its reverse (3321343412), we get a palindrome (5464774645).

The spelling of 2143431233 in words is "two billion, one hundred forty-three million, four hundred thirty-one thousand, two hundred thirty-three".