11115111054 has 32 divisors (see below), whose sum is σ = 24561273600. Its totient is φ = 3335480192.

The previous prime is 11115111043. The next prime is 11115111079. The reversal of 11115111054 is 45011151111.

It is a self number, because there is not a number n which added to its sum of digits gives 11115111054.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2366604 + ... + 2371295.

It is an arithmetic number, because the mean of its divisors is an integer number (767539800).

Almost surely, 2^11115111054 is an apocalyptic number.

11115111054 is an abundant number, since it is smaller than the sum of its proper divisors (13446162546).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11115111054 is a wasteful number, since it uses less digits than its factorization.

11115111054 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4737944.

The product of its (nonzero) digits is 100, while the sum is 21.

Adding to 11115111054 its reverse (45011151111), we get a palindrome (56126262165).

The spelling of 11115111054 in words is "eleven billion, one hundred fifteen million, one hundred eleven thousand, fifty-four".