20003300013121 has 4 divisors (see below), whose sum is σ = 20003905527892. Its totient is φ = 20002694498352.

The previous prime is 20003300012977. The next prime is 20003300013239. The reversal of 20003300013121 is 12131000330002.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 23696292096 + 19979603721025 = 153936^2 + 4469855^2 .

It is a cyclic number.

It is not a de Polignac number, because 20003300013121 - 2²³ = 20003291624513 is a prime.

It is a super-2 number, since 2×20003300013121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20003300013095 and 20003300013104.

It is not an unprimeable number, because it can be changed into a prime (20003340013121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 302707830 + ... + 302773903.

It is an arithmetic number, because the mean of its divisors is an integer number (5000976381973).

Almost surely, 2^{20003300013121} is an apocalyptic number.

It is an amenable number.

20003300013121 is a deficient number, since it is larger than the sum of its proper divisors (605514771).

20003300013121 is an equidigital number, since it uses as much as digits as its factorization.

20003300013121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 605514770.

The product of its (nonzero) digits is 108, while the sum is 16.

Adding to 20003300013121 its reverse (12131000330002), we get a palindrome (32134300343123).

The spelling of 20003300013121 in words is "twenty trillion, three billion, three hundred million, thirteen thousand, one hundred twenty-one".