20211110121013 has 16 divisors (see below), whose sum is σ = 23113348807680. Its totient is φ = 17312609260800.

The previous prime is 20211110120987. The next prime is 20211110121017. The reversal of 20211110121013 is 31012101111202.

It is a happy number.

It is a de Polignac number, because none of the positive numbers 2^k-20211110121013 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20211110121017) 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, 70391523 + ... + 70678063.

It is an arithmetic number, because the mean of its divisors is an integer number (1444584300480).

Almost surely, 2^{20211110121013} is an apocalyptic number.

It is an amenable number.

20211110121013 is a deficient number, since it is larger than the sum of its proper divisors (2902238686667).

20211110121013 is a wasteful number, since it uses less digits than its factorization.

20211110121013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 293028.

The product of its (nonzero) digits is 24, while the sum is 16.

Adding to 20211110121013 its reverse (31012101111202), we get a palindrome (51223211232215).

The spelling of 20211110121013 in words is "twenty trillion, two hundred eleven billion, one hundred ten million, one hundred twenty-one thousand, thirteen".