32011223120 has 80 divisors (see below), whose sum is σ = 77034600720. Its totient is φ = 12356198400.

The previous prime is 32011223119. The next prime is 32011223143. The reversal of 32011223120 is 2132211023.

It can be written as a sum of positive squares in 8 ways, for example, as 2087758864 + 29923464256 = 45692^2 + 172984^2 .

It is a tau number, because it is divible by the number of its divisors (80).

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7238510 + ... + 7242930.

It is an arithmetic number, because the mean of its divisors is an integer number (962932509).

Almost surely, 2^32011223120 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 32011223120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (38517300360).

32011223120 is an abundant number, since it is smaller than the sum of its proper divisors (45023377600).

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

32011223120 is a wasteful number, since it uses less digits than its factorization.

32011223120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7584 (or 7578 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 32011223120 its reverse (2132211023), we get a palindrome (34143434143).

The spelling of 32011223120 in words is "thirty-two billion, eleven million, two hundred twenty-three thousand, one hundred twenty".