11111513004 has 36 divisors (see below), whose sum is σ = 29739639384. Its totient is φ = 3485964672.

The previous prime is 11111512969. The next prime is 11111513053. The reversal of 11111513004 is 40031511111.

11111513004 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a tau number, because it is divible by the number of its divisors (36).

It is a super-2 number, since 2×11111513004² (a number of 21 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9077422 + ... + 9078645.

It is an arithmetic number, because the mean of its divisors is an integer number (826101094).

Almost surely, 2^11111513004 is an apocalyptic number.

It is an amenable number.

11111513004 is an abundant number, since it is smaller than the sum of its proper divisors (18628126380).

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

11111513004 is a wasteful number, since it uses less digits than its factorization.

11111513004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18156094 (or 18156089 counting only the distinct ones).

The product of its (nonzero) digits is 60, while the sum is 18.

The spelling of 11111513004 in words is "eleven billion, one hundred eleven million, five hundred thirteen thousand, four".