220312323132 has 96 divisors (see below), whose sum is σ = 590917662720. Its totient is φ = 63182508480.

The previous prime is 220312323109. The next prime is 220312323193. The reversal of 220312323132 is 231323213022.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2420683 + ... + 2510045.

It is an arithmetic number, because the mean of its divisors is an integer number (6155392320).

Almost surely, 2^220312323132 is an apocalyptic number.

220312323132 is a gapful number since it is divisible by the number (22) 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 220312323132, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (295458831360).

220312323132 is an abundant number, since it is smaller than the sum of its proper divisors (370605339588).

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

220312323132 is a wasteful number, since it uses less digits than its factorization.

220312323132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 90383 (or 90381 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 24.

Adding to 220312323132 its reverse (231323213022), we get a palindrome (451635536154).

The spelling of 220312323132 in words is "two hundred twenty billion, three hundred twelve million, three hundred twenty-three thousand, one hundred thirty-two".