10000121011 has 4 divisors (see below), whose sum is σ = 10344952800. Its totient is φ = 9655289224.

The previous prime is 10000121009. The next prime is 10000121029. The reversal of 10000121011 is 11012100001.

10000121011 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.

It is a cyclic number.

It is not a de Polignac number, because 10000121011 - 2¹ = 10000121009 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 10000120985 and 10000121003.

It is not an unprimeable number, because it can be changed into a prime (10000121311) 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, 172415851 + ... + 172415908.

It is an arithmetic number, because the mean of its divisors is an integer number (2586238200).

Almost surely, 2^10000121011 is an apocalyptic number.

10000121011 is a deficient number, since it is larger than the sum of its proper divisors (344831789).

10000121011 is an equidigital number, since it uses as much as digits as its factorization.

10000121011 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 344831788.

The product of its (nonzero) digits is 2, while the sum is 7.

Adding to 10000121011 its reverse (11012100001), we get a palindrome (21012221012).

The spelling of 10000121011 in words is "ten billion, one hundred twenty-one thousand, eleven".