11315051111 has 32 divisors (see below), whose sum is σ = 14142256128. Its totient is φ = 8814435840.

The previous prime is 11315051081. The next prime is 11315051113. The reversal of 11315051111 is 11115051311.

It is a de Polignac number, because none of the positive numbers 2^k-11315051111 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11315051113) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2346575 + ... + 2351391.

It is an arithmetic number, because the mean of its divisors is an integer number (441945504).

Almost surely, 2^11315051111 is an apocalyptic number.

11315051111 is a deficient number, since it is larger than the sum of its proper divisors (2827205017).

11315051111 is a wasteful number, since it uses less digits than its factorization.

11315051111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5231.

The product of its (nonzero) digits is 75, while the sum is 20.

The spelling of 11315051111 in words is "eleven billion, three hundred fifteen million, fifty-one thousand, one hundred eleven".