11123072015 has 12 divisors (see below), whose sum is σ = 14671424712. Its totient is φ = 8089506480.

The previous prime is 11123071997. The next prime is 11123072027. The reversal of 11123072015 is 51027032111.

It is not a de Polignac number, because 11123072015 - 2⁶ = 11123071951 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9192017 + ... + 9193226.

It is an arithmetic number, because the mean of its divisors is an integer number (1222618726).

Almost surely, 2^11123072015 is an apocalyptic number.

11123072015 is a deficient number, since it is larger than the sum of its proper divisors (3548352697).

11123072015 is a wasteful number, since it uses less digits than its factorization.

11123072015 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 18385270 (or 18385259 counting only the distinct ones).

The product of its (nonzero) digits is 420, while the sum is 23.

The spelling of 11123072015 in words is "eleven billion, one hundred twenty-three million, seventy-two thousand, fifteen".