11236857347 has 4 divisors (see below), whose sum is σ = 11322635016. Its totient is φ = 11151079680.

The previous prime is 11236857343. The next prime is 11236857361. The reversal of 11236857347 is 74375863211.

It is a happy number.

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 11236857347 - 2² = 11236857343 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11236857343) 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, 42888638 + ... + 42888899.

It is an arithmetic number, because the mean of its divisors is an integer number (2830658754).

Almost surely, 2^11236857347 is an apocalyptic number.

11236857347 is a deficient number, since it is larger than the sum of its proper divisors (85777669).

11236857347 is an equidigital number, since it uses as much as digits as its factorization.

11236857347 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 85777668.

The product of its digits is 846720, while the sum is 47.

The spelling of 11236857347 in words is "eleven billion, two hundred thirty-six million, eight hundred fifty-seven thousand, three hundred forty-seven".