213323032220 has 72 divisors (see below), whose sum is σ = 477248200800. Its totient is φ = 80078976000.

The previous prime is 213323032201. The next prime is 213323032243. The reversal of 213323032220 is 22230323312.

It is a super-3 number, since 3×213323032220³ (a number of 35 digits) contains 333 as substring.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 1964345 + ... + 2070095.

Almost surely, 2^213323032220 is an apocalyptic number.

213323032220 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 213323032220, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (238624100400).

213323032220 is an abundant number, since it is smaller than the sum of its proper divisors (263925168580).

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

213323032220 is a wasteful number, since it uses less digits than its factorization.

213323032220 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 106143 (or 106124 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 213323032220 its reverse (22230323312), we get a palindrome (235553355532).

The spelling of 213323032220 in words is "two hundred thirteen billion, three hundred twenty-three million, thirty-two thousand, two hundred twenty".