11011020010121 has 8 divisors (see below), whose sum is σ = 11092752618024. Its totient is φ = 10929307115520.

The previous prime is 11011020010103. The next prime is 11011020010129. The reversal of 11011020010121 is 12101002011011.

It can be written as a sum of positive squares in 4 ways, for example, as 110034841225 + 10900985168896 = 331715^2 + 3301664^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11011020010121 - 2¹⁴ = 11011019993737 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11011020010129) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 3806120 + ... + 6042233.

It is an arithmetic number, because the mean of its divisors is an integer number (1386594077253).

Almost surely, 2^{11011020010121} is an apocalyptic number.

It is an amenable number.

11011020010121 is a deficient number, since it is larger than the sum of its proper divisors (81732607903).

11011020010121 is an equidigital number, since it uses as much as digits as its factorization.

11011020010121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 9856651.

The product of its (nonzero) digits is 4, while the sum is 11.

Adding to 11011020010121 its reverse (12101002011011), we get a palindrome (23112022021132).

The spelling of 11011020010121 in words is "eleven trillion, eleven billion, twenty million, ten thousand, one hundred twenty-one".