11243240202331 has 4 divisors (see below), whose sum is σ = 11257785145152. Its totient is φ = 11228695259512.

The previous prime is 11243240202317. The next prime is 11243240202347. The reversal of 11243240202331 is 13320204234211.

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

It is a cyclic number.

It is not a de Polignac number, because 11243240202331 - 2¹⁵ = 11243240169563 is a prime.

It is a super-2 number, since 2×11243240202331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 11243240202331.

It is not an unprimeable number, because it can be changed into a prime (11243240202361) 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, 7272470251 + ... + 7272471796.

It is an arithmetic number, because the mean of its divisors is an integer number (2814446286288).

Almost surely, 2^{11243240202331} is an apocalyptic number.

11243240202331 is a deficient number, since it is larger than the sum of its proper divisors (14544942821).

11243240202331 is an equidigital number, since it uses as much as digits as its factorization.

11243240202331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14544942820.

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 11243240202331 its reverse (13320204234211), we get a palindrome (24563444436542).

The spelling of 11243240202331 in words is "eleven trillion, two hundred forty-three billion, two hundred forty million, two hundred two thousand, three hundred thirty-one".