213313220230240 has 96 divisors (see below), whose sum is σ = 542960463306240. Its totient is φ = 78726625449984.

The previous prime is 213313220230181. The next prime is 213313220230247. The reversal of 213313220230240 is 42032022313312.

It is a super-2 number, since 2×213313220230240² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 213313220230199 and 213313220230208.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (213313220230247) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 18244719 + ... + 27558958.

It is an arithmetic number, because the mean of its divisors is an integer number (5655838159440).

Almost surely, 2^{213313220230240} is an apocalyptic number.

213313220230240 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

213313220230240 is an abundant number, since it is smaller than the sum of its proper divisors (329647243076000).

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

213313220230240 is a wasteful number, since it uses less digits than its factorization.

213313220230240 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 45805944 (or 45805936 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 213313220230240 its reverse (42032022313312), we get a palindrome (255345242543552).

The spelling of 213313220230240 in words is "two hundred thirteen trillion, three hundred thirteen billion, two hundred twenty million, two hundred thirty thousand, two hundred forty".