32143120400 has 120 divisors (see below), whose sum is σ = 78648240000. Its totient is φ = 12620966400.

The previous prime is 32143120393. The next prime is 32143120421. The reversal of 32143120400 is 402134123.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 16078601 + ... + 16080599.

It is an arithmetic number, because the mean of its divisors is an integer number (655402000).

Almost surely, 2^32143120400 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 32143120400, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (39324120000).

32143120400 is an abundant number, since it is smaller than the sum of its proper divisors (46505119600).

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

32143120400 is a wasteful number, since it uses less digits than its factorization.

32143120400 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2737 (or 2726 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 20.

Adding to 32143120400 its reverse (402134123), we get a palindrome (32545254523).

The spelling of 32143120400 in words is "thirty-two billion, one hundred forty-three million, one hundred twenty thousand, four hundred".