20123310122001 has 12 divisors (see below), whose sum is σ = 29067950624128. Its totient is φ = 13415102951544.

The previous prime is 20123310121969. The next prime is 20123310122029. The reversal of 20123310122001 is 10022101332102.

20123310122001 is a `hidden beast` number, since 20 + 123 + 310 + 12 + 200 + 1 = 666.

It is not a de Polignac number, because 20123310122001 - 2⁵ = 20123310121969 is a prime.

It is a super-2 number, since 2×20123310122001² (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 (20123310622001) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 36135805 + ... + 36688458.

Almost surely, 2^{20123310122001} is an apocalyptic number.

It is an amenable number.

20123310122001 is a deficient number, since it is larger than the sum of its proper divisors (8944640502127).

20123310122001 is a wasteful number, since it uses less digits than its factorization.

20123310122001 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 72854972 (or 72854969 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

Adding to 20123310122001 its reverse (10022101332102), we get a palindrome (30145411454103).

The spelling of 20123310122001 in words is "twenty trillion, one hundred twenty-three billion, three hundred ten million, one hundred twenty-two thousand, one".