1115001004 has 12 divisors (see below), whose sum is σ = 2101348144. Its totient is φ = 514615824.

The previous prime is 1115000977. The next prime is 1115001037. The reversal of 1115001004 is 4001005111.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 10721112 + ... + 10721215.

Almost surely, 2^1115001004 is an apocalyptic number.

It is an amenable number.

1115001004 is a deficient number, since it is larger than the sum of its proper divisors (986347140).

1115001004 is a wasteful number, since it uses less digits than its factorization.

1115001004 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 21442344 (or 21442342 counting only the distinct ones).

The product of its (nonzero) digits is 20, while the sum is 13.

The square root of 1115001004 is about 33391.6307478386. The cubic root of 1115001004 is about 1036.9514410602.

Adding to 1115001004 its reverse (4001005111), we get a palindrome (5116006115).

The spelling of 1115001004 in words is "one billion, one hundred fifteen million, one thousand, four".