32320213020 has 72 divisors (see below), whose sum is σ = 99887782176. Its totient is φ = 8456103552.

The previous prime is 32320213007. The next prime is 32320213021. The reversal of 32320213020 is 2031202323.

It is a happy number.

32320213020 is a `hidden beast` number, since 323 + 20 + 21 + 302 + 0 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 32320212984 and 32320213002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (32320213021) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1684392 + ... + 1703471.

It is an arithmetic number, because the mean of its divisors is an integer number (1387330308).

Almost surely, 2^32320213020 is an apocalyptic number.

32320213020 is a gapful number since it is divisible by the number (30) formed by its first and last digit.

It is an amenable number.

32320213020 is an abundant number, since it is smaller than the sum of its proper divisors (67567569156).

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

32320213020 is a wasteful number, since it uses less digits than its factorization.

32320213020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3387931 (or 3387926 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 18.

Adding to 32320213020 its reverse (2031202323), we get a palindrome (34351415343).

The spelling of 32320213020 in words is "thirty-two billion, three hundred twenty million, two hundred thirteen thousand, twenty".