11927913111 has 12 divisors (see below), whose sum is σ = 17233923720. Its totient is φ = 7949765520.

The previous prime is 11927913097. The next prime is 11927913113. The reversal of 11927913111 is 11131972911.

It is a happy number.

It is not a de Polignac number, because 11927913111 - 2⁵ = 11927913079 is a prime.

It is a super-2 number, since 2×11927913111² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11927913113) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 146316 + ... + 212753.

It is an arithmetic number, because the mean of its divisors is an integer number (1436160310).

Almost surely, 2^11927913111 is an apocalyptic number.

11927913111 is a deficient number, since it is larger than the sum of its proper divisors (5306010609).

11927913111 is a wasteful number, since it uses less digits than its factorization.

11927913111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 362766 (or 362763 counting only the distinct ones).

The product of its digits is 3402, while the sum is 36.

The spelling of 11927913111 in words is "eleven billion, nine hundred twenty-seven million, nine hundred thirteen thousand, one hundred eleven".