213103040242241 has 4 divisors (see below), whose sum is σ = 213104377401300. Its totient is φ = 213101703083184.

The previous prime is 213103040242217. The next prime is 213103040242291. The reversal of 213103040242241 is 142242040301312.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 124695657891841 + 88407382350400 = 11166721^2 + 9402520^2 .

It is a cyclic number.

It is not a de Polignac number, because 213103040242241 - 2³⁰ = 213101966500417 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (213103040242291) 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 3 ways as a sum of consecutive naturals, for example, 668340446 + ... + 668659223.

It is an arithmetic number, because the mean of its divisors is an integer number (53276094350325).

Almost surely, 2^{213103040242241} is an apocalyptic number.

It is an amenable number.

213103040242241 is a deficient number, since it is larger than the sum of its proper divisors (1337159059).

213103040242241 is a wasteful number, since it uses less digits than its factorization.

213103040242241 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1337159058.

The product of its (nonzero) digits is 9216, while the sum is 29.

Adding to 213103040242241 its reverse (142242040301312), we get a palindrome (355345080543553).

The spelling of 213103040242241 in words is "two hundred thirteen trillion, one hundred three billion, forty million, two hundred forty-two thousand, two hundred forty-one".