213306240356 has 12 divisors (see below), whose sum is σ = 407221004400. Its totient is φ = 96957381960.

The previous prime is 213306240319. The next prime is 213306240359. The reversal of 213306240356 is 653042603312.

It is not an unprimeable number, because it can be changed into a prime (213306240359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2423934506 + ... + 2423934593.

It is an arithmetic number, because the mean of its divisors is an integer number (33935083700).

Almost surely, 2^213306240356 is an apocalyptic number.

It is an amenable number.

213306240356 is a deficient number, since it is larger than the sum of its proper divisors (193914764044).

213306240356 is a wasteful number, since it uses less digits than its factorization.

213306240356 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4847869114 (or 4847869112 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 35.

Adding to 213306240356 its reverse (653042603312), we get a palindrome (866348843668).

The spelling of 213306240356 in words is "two hundred thirteen billion, three hundred six million, two hundred forty thousand, three hundred fifty-six".