11315320043 has 4 divisors (see below), whose sum is σ = 11347375128. Its totient is φ = 11283264960.

The previous prime is 11315320039. The next prime is 11315320069. The reversal of 11315320043 is 34002351311.

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 11315320043 - 2² = 11315320039 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11315320033) 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, 16027013 + ... + 16027718.

It is an arithmetic number, because the mean of its divisors is an integer number (2836843782).

Almost surely, 2^11315320043 is an apocalyptic number.

11315320043 is a deficient number, since it is larger than the sum of its proper divisors (32055085).

11315320043 is an equidigital number, since it uses as much as digits as its factorization.

11315320043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32055084.

The product of its (nonzero) digits is 1080, while the sum is 23.

Adding to 11315320043 its reverse (34002351311), we get a palindrome (45317671354).

The spelling of 11315320043 in words is "eleven billion, three hundred fifteen million, three hundred twenty thousand, forty-three".