11124981 has 48 divisors (see below), whose sum is σ = 19393920. Its totient is φ = 6013440.

The previous prime is 11124977. The next prime is 11124983. The reversal of 11124981 is 18942111.

11124981 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is not a de Polignac number, because 11124981 - 2² = 11124977 is a prime.

It is a super-2 number, since 2×11124981² = 247530404500722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11124983) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 152361 + ... + 152433.

It is an arithmetic number, because the mean of its divisors is an integer number (404040).

Almost surely, 2^11124981 is an apocalyptic number.

It is an amenable number.

11124981 is a deficient number, since it is larger than the sum of its proper divisors (8268939).

11124981 is a wasteful number, since it uses less digits than its factorization.

11124981 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 186 (or 183 counting only the distinct ones).

The product of its digits is 576, while the sum is 27.

The square root of 11124981 is about 3335.4131678099. The cubic root of 11124981 is about 223.2371276928.

The spelling of 11124981 in words is "eleven million, one hundred twenty-four thousand, nine hundred eighty-one".