32020012320 has 48 divisors (see below), whose sum is σ = 100863040320. Its totient is φ = 8538669824.

The previous prime is 32020012309. The next prime is 32020012357. The reversal of 32020012320 is 2321002023.

It is a tau number, because it is divible by the number of its divisors (48).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 32020012320.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 33353700 + ... + 33354659.

It is an arithmetic number, because the mean of its divisors is an integer number (2101313340).

Almost surely, 2^32020012320 is an apocalyptic number.

32020012320 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32020012320 is an abundant number, since it is smaller than the sum of its proper divisors (68843028000).

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

32020012320 is a wasteful number, since it uses less digits than its factorization.

32020012320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 66708377 (or 66708369 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 15.

Adding to 32020012320 its reverse (2321002023), we get a palindrome (34341014343).

It can be divided in two parts, 320200 and 12320, that added together give a triangular number (332520 = T₈₁₅).

The spelling of 32020012320 in words is "thirty-two billion, twenty million, twelve thousand, three hundred twenty".