11130547731 has 4 divisors (see below), whose sum is σ = 14840730312. Its totient is φ = 7420365152.

The previous prime is 11130547691. The next prime is 11130547733. The reversal of 11130547731 is 13774503111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11130547731 is a prime.

It is a super-2 number, since 2×11130547731² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 11130547692 and 11130547701.

It is not an unprimeable number, because it can be changed into a prime (11130547733) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1855091286 + ... + 1855091291.

It is an arithmetic number, because the mean of its divisors is an integer number (3710182578).

Almost surely, 2^11130547731 is an apocalyptic number.

11130547731 is a deficient number, since it is larger than the sum of its proper divisors (3710182581).

11130547731 is an equidigital number, since it uses as much as digits as its factorization.

11130547731 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3710182580.

The product of its (nonzero) digits is 8820, while the sum is 33.

The spelling of 11130547731 in words is "eleven billion, one hundred thirty million, five hundred forty-seven thousand, seven hundred thirty-one".