213243232332 has 384 divisors, whose sum is σ = 592812380160. Its totient is φ = 59112345600.

The previous prime is 213243232283. The next prime is 213243232403. The reversal of 213243232332 is 233232342312.

It is a happy number.

It is a super-2 number, since 2×213243232332² (a number of 23 digits) contains 22 as substring.

It is a nude number because it is divisible by every one of its digits.

It is a self number, because there is not a number n which added to its sum of digits gives 213243232332.

It is an unprimeable number.

It is a polite number, since it can be written in 127 ways as a sum of consecutive naturals, for example, 1082452858 + ... + 1082453054.

It is an arithmetic number, because the mean of its divisors is an integer number (1543782240).

Almost surely, 2^213243232332 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 213243232332, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (296406190080).

213243232332 is an abundant number, since it is smaller than the sum of its proper divisors (379569147828).

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

213243232332 is a wasteful number, since it uses less digits than its factorization.

213243232332 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 473 (or 471 counting only the distinct ones).

The product of its digits is 31104, while the sum is 30.

Adding to 213243232332 its reverse (233232342312), we get a palindrome (446475574644).

The spelling of 213243232332 in words is "two hundred thirteen billion, two hundred forty-three million, two hundred thirty-two thousand, three hundred thirty-two".