11124857187 has 24 divisors (see below), whose sum is σ = 16454380800. Its totient is φ = 7239053808.

The previous prime is 11124857167. The next prime is 11124857207. The reversal of 11124857187 is 78175842111.

11124857187 is a `hidden beast` number, since 11 + 12 + 485 + 71 + 87 = 666.

It is an interprime number because it is at equal distance from previous prime (11124857167) and next prime (11124857207).

It is not a de Polignac number, because 11124857187 - 2⁷ = 11124857059 is a prime.

It is a super-2 number, since 2×11124857187² (a number of 21 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (11124857167) by changing a digit.

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 23 ways as a sum of consecutive naturals, for example, 594114 + ... + 612552.

It is an arithmetic number, because the mean of its divisors is an integer number (685599200).

Almost surely, 2^11124857187 is an apocalyptic number.

11124857187 is a deficient number, since it is larger than the sum of its proper divisors (5329523613).

11124857187 is a wasteful number, since it uses less digits than its factorization.

11124857187 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20047 (or 20044 counting only the distinct ones).

The product of its digits is 125440, while the sum is 45.

The spelling of 11124857187 in words is "eleven billion, one hundred twenty-four million, eight hundred fifty-seven thousand, one hundred eighty-seven".