11000010121 has 4 divisors (see below), whose sum is σ = 11000513232. Its totient is φ = 10999507012.

The previous prime is 11000010113. The next prime is 11000010137. The reversal of 11000010121 is 12101000011.

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 11000010121 - 2³ = 11000010113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11000010101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 217195 + ... + 263008.

It is an arithmetic number, because the mean of its divisors is an integer number (2750128308).

Almost surely, 2^11000010121 is an apocalyptic number.

It is an amenable number.

11000010121 is a deficient number, since it is larger than the sum of its proper divisors (503111).

11000010121 is an equidigital number, since it uses as much as digits as its factorization.

11000010121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 503110.

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

Adding to 11000010121 its reverse (12101000011), we get a palindrome (23101010132).

The spelling of 11000010121 in words is "eleven billion, ten thousand, one hundred twenty-one".