2143031432 has 32 divisors (see below), whose sum is σ = 4232820000. Its totient is φ = 1014363648.

The previous prime is 2143031431. The next prime is 2143031461. The reversal of 2143031432 is 2341303412.

It is a junction number, because it is equal to n+sod(n) for n = 2143031398 and 2143031407.

It is not an unprimeable number, because it can be changed into a prime (2143031431) 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, 235544 + ... + 244472.

It is an arithmetic number, because the mean of its divisors is an integer number (132275625).

Almost surely, 2^2143031432 is an apocalyptic number.

It is an amenable number.

2143031432 is a deficient number, since it is larger than the sum of its proper divisors (2089788568).

2143031432 is a wasteful number, since it uses less digits than its factorization.

2143031432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10533 (or 10529 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 23.

The square root of 2143031432 is about 46292.8874882524. The cubic root of 2143031432 is about 1289.2669416410.

Adding to 2143031432 its reverse (2341303412), we get a palindrome (4484334844).

The spelling of 2143031432 in words is "two billion, one hundred forty-three million, thirty-one thousand, four hundred thirty-two".