213323432220 has 60 divisors (see below), whose sum is σ = 669203512824. Its totient is φ = 56886248160.

The previous prime is 213323432167. The next prime is 213323432221. The reversal of 213323432220 is 22234323312.

213323432220 is a `hidden beast` number, since 2 + 1 + 3 + 3 + 2 + 3 + 432 + 220 = 666.

It is a tau number, because it is divible by the number of its divisors (60).

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213323432221) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 65838946 + ... + 65842185.

Almost surely, 2^213323432220 is an apocalyptic number.

213323432220 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213323432220 is an abundant number, since it is smaller than the sum of its proper divisors (455880080604).

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

213323432220 is a wasteful number, since it uses less digits than its factorization.

213323432220 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 131681152 (or 131681141 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 27.

Adding to 213323432220 its reverse (22234323312), we get a palindrome (235557755532).

The spelling of 213323432220 in words is "two hundred thirteen billion, three hundred twenty-three million, four hundred thirty-two thousand, two hundred twenty".