32013321256 has 16 divisors (see below), whose sum is σ = 68599974240. Its totient is φ = 13719994800.

The previous prime is 32013321253. The next prime is 32013321281. The reversal of 32013321256 is 65212331023.

It is a super-2 number, since 2×32013321256² (a number of 22 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is not an unprimeable number, because it can be changed into a prime (32013321251) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 285833170 + ... + 285833281.

It is an arithmetic number, because the mean of its divisors is an integer number (4287498390).

Almost surely, 2^32013321256 is an apocalyptic number.

It is an amenable number.

32013321256 is an abundant number, since it is smaller than the sum of its proper divisors (36586652984).

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

32013321256 is a wasteful number, since it uses less digits than its factorization.

32013321256 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 571666464 (or 571666460 counting only the distinct ones).

The product of its (nonzero) digits is 6480, while the sum is 28.

Adding to 32013321256 its reverse (65212331023), we get a palindrome (97225652279).

The spelling of 32013321256 in words is "thirty-two billion, thirteen million, three hundred twenty-one thousand, two hundred fifty-six".