213323132 has 12 divisors (see below), whose sum is σ = 407253336. Its totient is φ = 96965040.

The previous prime is 213323069. The next prime is 213323141. The reversal of 213323132 is 231323312.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2424083 + ... + 2424170.

It is an arithmetic number, because the mean of its divisors is an integer number (33937778).

Almost surely, 2^213323132 is an apocalyptic number.

213323132 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

It is an amenable number.

213323132 is a deficient number, since it is larger than the sum of its proper divisors (193930204).

213323132 is a wasteful number, since it uses less digits than its factorization.

213323132 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4848268 (or 4848266 counting only the distinct ones).

The product of its digits is 648, while the sum is 20.

The square root of 213323132 is about 14605.5856438556. The cubic root of 213323132 is about 597.5111084926.

Adding to 213323132 its reverse (231323312), we get a palindrome (444646444).

The spelling of 213323132 in words is "two hundred thirteen million, three hundred twenty-three thousand, one hundred thirty-two".