10421143432 has 64 divisors (see below), whose sum is σ = 23095296000. Its totient is φ = 4315761216.

The previous prime is 10421143399. The next prime is 10421143433. The reversal of 10421143432 is 23434112401.

It is a junction number, because it is equal to n+sod(n) for n = 10421143397 and 10421143406.

It is not an unprimeable number, because it can be changed into a prime (10421143433) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 182869 + ... + 232987.

It is an arithmetic number, because the mean of its divisors is an integer number (360864000).

Almost surely, 2^10421143432 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 10421143432, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (11547648000).

10421143432 is an abundant number, since it is smaller than the sum of its proper divisors (12674152568).

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

10421143432 is a wasteful number, since it uses less digits than its factorization.

10421143432 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 50258 (or 50254 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 25.

Adding to 10421143432 its reverse (23434112401), we get a palindrome (33855255833).

The spelling of 10421143432 in words is "ten billion, four hundred twenty-one million, one hundred forty-three thousand, four hundred thirty-two".