11252242543 has 4 divisors (see below), whose sum is σ = 11254378528. Its totient is φ = 11250106560.

The previous prime is 11252242513. The next prime is 11252242553. The reversal of 11252242543 is 34524225211.

It is a happy number.

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 11252242543 - 2¹³ = 11252234351 is a prime.

It is a super-2 number, since 2×11252242543² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11252242513) 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, 1060071 + ... + 1070632.

It is an arithmetic number, because the mean of its divisors is an integer number (2813594632).

Almost surely, 2^11252242543 is an apocalyptic number.

11252242543 is a deficient number, since it is larger than the sum of its proper divisors (2135985).

11252242543 is an equidigital number, since it uses as much as digits as its factorization.

11252242543 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2135984.

The product of its digits is 19200, while the sum is 31.

Adding to 11252242543 its reverse (34524225211), we get a palindrome (45776467754).

The spelling of 11252242543 in words is "eleven billion, two hundred fifty-two million, two hundred forty-two thousand, five hundred forty-three".