11178712943 has 4 divisors (see below), whose sum is σ = 11247294168. Its totient is φ = 11110131720.

The previous prime is 11178712939. The next prime is 11178712999. The reversal of 11178712943 is 34921787111.

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 11178712943 - 2² = 11178712939 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11178712894 and 11178712903.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11178712903) 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, 34290368 + ... + 34290693.

It is an arithmetic number, because the mean of its divisors is an integer number (2811823542).

Almost surely, 2^11178712943 is an apocalyptic number.

11178712943 is a deficient number, since it is larger than the sum of its proper divisors (68581225).

11178712943 is an equidigital number, since it uses as much as digits as its factorization.

11178712943 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68581224.

The product of its digits is 84672, while the sum is 44.

The spelling of 11178712943 in words is "eleven billion, one hundred seventy-eight million, seven hundred twelve thousand, nine hundred forty-three".