20130122110105 has 32 divisors (see below), whose sum is σ = 28202033882880. Its totient is φ = 13508305009920.

The previous prime is 20130122110103. The next prime is 20130122110193. The reversal of 20130122110105 is 50101122103102.

It is not a de Polignac number, because 20130122110105 - 2¹ = 20130122110103 is a prime.

It is a super-2 number, since 2×20130122110105² (a number of 27 digits) contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (20130122110103) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 23509935 + ... + 24351124.

It is an arithmetic number, because the mean of its divisors is an integer number (881313558840).

Almost surely, 2^{20130122110105} is an apocalyptic number.

It is an amenable number.

20130122110105 is a deficient number, since it is larger than the sum of its proper divisors (8071911772775).

20130122110105 is a wasteful number, since it uses less digits than its factorization.

20130122110105 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47861329.

The product of its (nonzero) digits is 120, while the sum is 19.

Adding to 20130122110105 its reverse (50101122103102), we get a palindrome (70231244213207).

The spelling of 20130122110105 in words is "twenty trillion, one hundred thirty billion, one hundred twenty-two million, one hundred ten thousand, one hundred five".