20113102113121 has 16 divisors (see below), whose sum is σ = 21651965221248. Its totient is φ = 18613955462400.

The previous prime is 20113102113119. The next prime is 20113102113163. The reversal of 20113102113121 is 12131120131102.

It is a cyclic number.

It is not a de Polignac number, because 20113102113121 - 2¹ = 20113102113119 is a prime.

It is a super-2 number, since 2×20113102113121² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (20113102213121) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 427266 + ... + 6356788.

It is an arithmetic number, because the mean of its divisors is an integer number (1353247826328).

Almost surely, 2^{20113102113121} is an apocalyptic number.

It is an amenable number.

20113102113121 is a deficient number, since it is larger than the sum of its proper divisors (1538863108127).

20113102113121 is a wasteful number, since it uses less digits than its factorization.

20113102113121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5932872.

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 20113102113121 its reverse (12131120131102), we get a palindrome (32244222244223).

The spelling of 20113102113121 in words is "twenty trillion, one hundred thirteen billion, one hundred two million, one hundred thirteen thousand, one hundred twenty-one".