11130542243 has 12 divisors (see below), whose sum is σ = 12046901040. Its totient is φ = 10278133632.

The previous prime is 11130542239. The next prime is 11130542249. The reversal of 11130542243 is 34224503111.

It is a happy number.

It is not a de Polignac number, because 11130542243 - 2² = 11130542239 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11130542249) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 348023 + ... + 378656.

It is an arithmetic number, because the mean of its divisors is an integer number (1003908420).

Almost surely, 2^11130542243 is an apocalyptic number.

11130542243 is a deficient number, since it is larger than the sum of its proper divisors (916358797).

11130542243 is an equidigital number, since it uses as much as digits as its factorization.

11130542243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 726766 (or 726749 counting only the distinct ones).

The product of its (nonzero) digits is 2880, while the sum is 26.

The spelling of 11130542243 in words is "eleven billion, one hundred thirty million, five hundred forty-two thousand, two hundred forty-three".