11040512121 has 12 divisors (see below), whose sum is σ = 16185428272. Its totient is φ = 7250485176.

The previous prime is 11040512107. The next prime is 11040512159. The reversal of 11040512121 is 12121504011.

11040512121 is a `hidden beast` number, since 110 + 40 + 512 + 1 + 2 + 1 = 666.

It is not a de Polignac number, because 11040512121 - 2¹⁵ = 11040479353 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11040512094 and 11040512103.

It is not an unprimeable number, because it can be changed into a prime (11040512321) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 9154051 + ... + 9155256.

Almost surely, 2^11040512121 is an apocalyptic number.

It is an amenable number.

11040512121 is a deficient number, since it is larger than the sum of its proper divisors (5144916151).

11040512121 is a wasteful number, since it uses less digits than its factorization.

11040512121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18309380 (or 18309377 counting only the distinct ones).

The product of its (nonzero) digits is 80, while the sum is 18.

The spelling of 11040512121 in words is "eleven billion, forty million, five hundred twelve thousand, one hundred twenty-one".