11131010243 has 4 divisors (see below), whose sum is σ = 11131519680. Its totient is φ = 11130500808.

The previous prime is 11131010239. The next prime is 11131010273. The reversal of 11131010243 is 34201013111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 34201013111 = 487 ⋅70227953.

It is a cyclic number.

It is not a de Polignac number, because 11131010243 - 2² = 11131010239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11131010273) 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, 220403 + ... + 266156.

It is an arithmetic number, because the mean of its divisors is an integer number (2782879920).

Almost surely, 2^11131010243 is an apocalyptic number.

11131010243 is a deficient number, since it is larger than the sum of its proper divisors (509437).

11131010243 is an equidigital number, since it uses as much as digits as its factorization.

11131010243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 509436.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 11131010243 its reverse (34201013111), we get a palindrome (45332023354).

The spelling of 11131010243 in words is "eleven billion, one hundred thirty-one million, ten thousand, two hundred forty-three".