11315051311 has 4 divisors (see below), whose sum is σ = 11427081624. Its totient is φ = 11203021000.

The previous prime is 11315051303. The next prime is 11315051317.

11315051311 is nontrivially palindromic in base 10.

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

It is not a de Polignac number, because 11315051311 - 2³ = 11315051303 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 (11315051317) 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, 56015005 + ... + 56015206.

It is an arithmetic number, because the mean of its divisors is an integer number (2856770406).

Almost surely, 2^11315051311 is an apocalyptic number.

11315051311 is a deficient number, since it is larger than the sum of its proper divisors (112030313).

11315051311 is a wasteful number, since it uses less digits than its factorization.

11315051311 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112030312.

The product of its (nonzero) digits is 225, while the sum is 22.

It can be divided in two parts, 113150 and 51311, that added together give a palindrome (164461).

The spelling of 11315051311 in words is "eleven billion, three hundred fifteen million, fifty-one thousand, three hundred eleven".