11111056004 has 6 divisors (see below), whose sum is σ = 19444348014. Its totient is φ = 5555528000.

The previous prime is 11111056003. The next prime is 11111056091. The reversal of 11111056004 is 40065011111.

It is a happy number.

It can be written as a sum of positive squares in only one way, i.e., 9283322500 + 1827733504 = 96350^2 + 42752^2 .

It is not an unprimeable number, because it can be changed into a prime (11111056001) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1388881997 + ... + 1388882004.

It is an arithmetic number, because the mean of its divisors is an integer number (3240724669).

Almost surely, 2^11111056004 is an apocalyptic number.

It is an amenable number.

11111056004 is a deficient number, since it is larger than the sum of its proper divisors (8333292010).

11111056004 is a wasteful number, since it uses less digits than its factorization.

11111056004 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2777764005 (or 2777764003 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 20.

Adding to 11111056004 its reverse (40065011111), we get a palindrome (51176067115).

The spelling of 11111056004 in words is "eleven billion, one hundred eleven million, fifty-six thousand, four".