11012040121 has 4 divisors (see below), whose sum is σ = 11591621200. Its totient is φ = 10432459044.

The previous prime is 11012040113. The next prime is 11012040163. The reversal of 11012040121 is 12104021011.

11012040121 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 11012040121 - 2³ = 11012040113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11012047121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 289790511 + ... + 289790548.

It is an arithmetic number, because the mean of its divisors is an integer number (2897905300).

Almost surely, 2^11012040121 is an apocalyptic number.

It is an amenable number.

11012040121 is a deficient number, since it is larger than the sum of its proper divisors (579581079).

11012040121 is an equidigital number, since it uses as much as digits as its factorization.

11012040121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 579581078.

The product of its (nonzero) digits is 16, while the sum is 13.

Adding to 11012040121 its reverse (12104021011), we get a palindrome (23116061132).

The spelling of 11012040121 in words is "eleven billion, twelve million, forty thousand, one hundred twenty-one".