11611370317 has 4 divisors (see below), whose sum is σ = 11774910816. Its totient is φ = 11447829820.

The previous prime is 11611370299. The next prime is 11611370321. The reversal of 11611370317 is 71307311611.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11611370317 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11611370417) 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, 81770143 + ... + 81770284.

It is an arithmetic number, because the mean of its divisors is an integer number (2943727704).

Almost surely, 2^11611370317 is an apocalyptic number.

It is an amenable number.

11611370317 is a deficient number, since it is larger than the sum of its proper divisors (163540499).

11611370317 is an equidigital number, since it uses as much as digits as its factorization.

11611370317 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163540498.

The product of its (nonzero) digits is 2646, while the sum is 31.

Adding to 11611370317 its reverse (71307311611), we get a palindrome (82918681928).

The spelling of 11611370317 in words is "eleven billion, six hundred eleven million, three hundred seventy thousand, three hundred seventeen".