2143343420432 has 80 divisors (see below), whose sum is σ = 4448795883840. Its totient is φ = 998476985856.

The previous prime is 2143343420423. The next prime is 2143343420459. The reversal of 2143343420432 is 2340243433412.

It is a junction number, because it is equal to n+sod(n) for n = 2143343420392 and 2143343420401.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1008878 + ... + 2303154.

It is an arithmetic number, because the mean of its divisors is an integer number (55609948548).

Almost surely, 2^{2143343420432} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 2143343420432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2224397941920).

2143343420432 is an abundant number, since it is smaller than the sum of its proper divisors (2305452463408).

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

2143343420432 is a wasteful number, since it uses less digits than its factorization.

2143343420432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1294440 (or 1294434 counting only the distinct ones).

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 2143343420432 its reverse (2340243433412), we get a palindrome (4483586853844).

The spelling of 2143343420432 in words is "two trillion, one hundred forty-three billion, three hundred forty-three million, four hundred twenty thousand, four hundred thirty-two".