213232040340 has 96 divisors (see below), whose sum is σ = 651518138880. Its totient is φ = 51677443200.

The previous prime is 213232040339. The next prime is 213232040363. The reversal of 213232040340 is 43040232312.

It is a self number, because there is not a number n which added to its sum of digits gives 213232040340.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2290095 + ... + 2381385.

It is an arithmetic number, because the mean of its divisors is an integer number (6786647280).

Almost surely, 2^213232040340 is an apocalyptic number.

213232040340 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213232040340 is an abundant number, since it is smaller than the sum of its proper divisors (438286098540).

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

213232040340 is a wasteful number, since it uses less digits than its factorization.

213232040340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 94853 (or 94851 counting only the distinct ones).

The product of its (nonzero) digits is 3456, while the sum is 24.

Adding to 213232040340 its reverse (43040232312), we get a palindrome (256272272652).

The spelling of 213232040340 in words is "two hundred thirteen billion, two hundred thirty-two million, forty thousand, three hundred forty".