33543240213 has 32 divisors (see below), whose sum is σ = 51862671360. Its totient is φ = 18886936320.

The previous prime is 33543240191. The next prime is 33543240221. The reversal of 33543240213 is 31204234533.

It is not a de Polignac number, because 33543240213 - 2¹² = 33543236117 is a prime.

It is a super-2 number, since 2×33543240213² (a number of 22 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (33543240223) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 3169056 + ... + 3179622.

It is an arithmetic number, because the mean of its divisors is an integer number (1620708480).

Almost surely, 2^33543240213 is an apocalyptic number.

It is an amenable number.

33543240213 is a deficient number, since it is larger than the sum of its proper divisors (18319431147).

33543240213 is a wasteful number, since it uses less digits than its factorization.

33543240213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12777.

The product of its (nonzero) digits is 25920, while the sum is 30.

Adding to 33543240213 its reverse (31204234533), we get a palindrome (64747474746).

The spelling of 33543240213 in words is "thirty-three billion, five hundred forty-three million, two hundred forty thousand, two hundred thirteen".