220031442320 has 40 divisors (see below), whose sum is σ = 520243845120. Its totient is φ = 86520836480.

The previous prime is 220031442283. The next prime is 220031442347. The reversal of 220031442320 is 23244130022.

It is a tau number, because it is divible by the number of its divisors (40).

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, 23303696 + ... + 23313135.

It is an arithmetic number, because the mean of its divisors is an integer number (13006096128).

Almost surely, 2^220031442320 is an apocalyptic number.

220031442320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

220031442320 is an abundant number, since it is smaller than the sum of its proper divisors (300212402800).

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

220031442320 is a wasteful number, since it uses less digits than its factorization.

220031442320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 46616903 (or 46616897 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 220031442320 its reverse (23244130022), we get a palindrome (243275572342).

The spelling of 220031442320 in words is "two hundred twenty billion, thirty-one million, four hundred forty-two thousand, three hundred twenty".