220231310320 has 320 divisors, whose sum is σ = 634690805760. Its totient is φ = 69345755136.

The previous prime is 220231310309. The next prime is 220231310353. The reversal of 220231310320 is 23013132022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 227746477 + ... + 227747443.

It is an arithmetic number, because the mean of its divisors is an integer number (1983408768).

Almost surely, 2^220231310320 is an apocalyptic number.

220231310320 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 220231310320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (317345402880).

220231310320 is an abundant number, since it is smaller than the sum of its proper divisors (414459495440).

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

220231310320 is a wasteful number, since it uses less digits than its factorization.

220231310320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1560 (or 1554 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 220231310320 its reverse (23013132022), we get a palindrome (243244442342).

The spelling of 220231310320 in words is "two hundred twenty billion, two hundred thirty-one million, three hundred ten thousand, three hundred twenty".