20130113022121 has 16 divisors (see below), whose sum is σ = 21020073480000. Its totient is φ = 19253227876288.

The previous prime is 20130113022083. The next prime is 20130113022161. The reversal of 20130113022121 is 12122031103102.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-20130113022121 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20130113022161) 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, 57052755 + ... + 57404503.

It is an arithmetic number, because the mean of its divisors is an integer number (1313754592500).

Almost surely, 2^{20130113022121} is an apocalyptic number.

It is an amenable number.

20130113022121 is a deficient number, since it is larger than the sum of its proper divisors (889960457879).

20130113022121 is a wasteful number, since it uses less digits than its factorization.

20130113022121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 370328.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 20130113022121 its reverse (12122031103102), we get a palindrome (32252144125223).

The spelling of 20130113022121 in words is "twenty trillion, one hundred thirty billion, one hundred thirteen million, twenty-two thousand, one hundred twenty-one".