2143321432 has 16 divisors (see below), whose sum is σ = 4592831760. Its totient is φ = 918566304.

The previous prime is 2143321423. The next prime is 2143321441. The reversal of 2143321432 is 2341233412.

It is an interprime number because it is at equal distance from previous prime (2143321423) and next prime (2143321441).

It is a junction number, because it is equal to n+sod(n) for n = 2143321397 and 2143321406.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19136743 + ... + 19136854.

It is an arithmetic number, because the mean of its divisors is an integer number (287051985).

Almost surely, 2^2143321432 is an apocalyptic number.

It is an amenable number.

2143321432 is an abundant number, since it is smaller than the sum of its proper divisors (2449510328).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

2143321432 is a wasteful number, since it uses less digits than its factorization.

2143321432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 38273610 (or 38273606 counting only the distinct ones).

The product of its digits is 3456, while the sum is 25.

The square root of 2143321432 is about 46296.0196129214. The cubic root of 2143321432 is about 1289.3250945521.

Adding to 2143321432 its reverse (2341233412), we get a palindrome (4484554844).

The spelling of 2143321432 in words is "two billion, one hundred forty-three million, three hundred twenty-one thousand, four hundred thirty-two".