213332532340 has 24 divisors (see below), whose sum is σ = 449527334760. Its totient is φ = 85041771648.

The previous prime is 213332532337. The next prime is 213332532341. The reversal of 213332532340 is 43235233312.

213332532340 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 76305222756 + 137027309584 = 276234^2 + 370172^2 .

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213332532341) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 18196575 + ... + 18208294.

It is an arithmetic number, because the mean of its divisors is an integer number (18730305615).

Almost surely, 2^213332532340 is an apocalyptic number.

213332532340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213332532340 is an abundant number, since it is smaller than the sum of its proper divisors (236194802420).

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

213332532340 is a wasteful number, since it uses less digits than its factorization.

213332532340 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36405171 (or 36405169 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 31.

Adding to 213332532340 its reverse (43235233312), we get a palindrome (256567765652).

The spelling of 213332532340 in words is "two hundred thirteen billion, three hundred thirty-two million, five hundred thirty-two thousand, three hundred forty".