11130549491 has 4 divisors (see below), whose sum is σ = 11137417584. Its totient is φ = 11123681400.

The previous prime is 11130549439. The next prime is 11130549509. The reversal of 11130549491 is 19494503111.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 19494503111 = 67 ⋅290962733.

It is a cyclic number.

It is not a de Polignac number, because 11130549491 - 2¹⁰ = 11130548467 is a prime.

It is a super-3 number, since 3×11130549491³ (a number of 31 digits) contains 333 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11130549431) 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, 3431615 + ... + 3434856.

It is an arithmetic number, because the mean of its divisors is an integer number (2784354396).

Almost surely, 2^11130549491 is an apocalyptic number.

11130549491 is a deficient number, since it is larger than the sum of its proper divisors (6868093).

11130549491 is an equidigital number, since it uses as much as digits as its factorization.

11130549491 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6868092.

The product of its (nonzero) digits is 19440, while the sum is 38.

The spelling of 11130549491 in words is "eleven billion, one hundred thirty million, five hundred forty-nine thousand, four hundred ninety-one".