11012121043 has 16 divisors (see below), whose sum is σ = 13780085760. Its totient is φ = 8549193600.

The previous prime is 11012121011. The next prime is 11012121047. The reversal of 11012121043 is 34012121011.

11012121043 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a cyclic number.

It is not a de Polignac number, because 11012121043 - 2⁵ = 11012121011 is a prime.

It is not an unprimeable number, because it can be changed into a prime (11012121047) 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 15 ways as a sum of consecutive naturals, for example, 242998 + ... + 284731.

It is an arithmetic number, because the mean of its divisors is an integer number (861255360).

Almost surely, 2^11012121043 is an apocalyptic number.

11012121043 is a deficient number, since it is larger than the sum of its proper divisors (2767964717).

11012121043 is a wasteful number, since it uses less digits than its factorization.

11012121043 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 528018.

The product of its (nonzero) digits is 48, while the sum is 16.

Adding to 11012121043 its reverse (34012121011), we get a palindrome (45024242054).

The spelling of 11012121043 in words is "eleven billion, twelve million, one hundred twenty-one thousand, forty-three".