20023015122135 has 48 divisors (see below), whose sum is σ = 37792986847200. Its totient is φ = 9768033499392.

The previous prime is 20023015122119. The next prime is 20023015122139. The reversal of 20023015122135 is 53122151032002.

20023015122135 is a `hidden beast` number, since 200 + 2 + 301 + 5 + 1 + 22 + 135 = 666.

It is not a de Polignac number, because 20023015122135 - 2⁴ = 20023015122119 is a prime.

It is a super-2 number, since 2×20023015122135² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20023015122099 and 20023015122108.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20023015122139) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 403746432 + ... + 403796021.

It is an arithmetic number, because the mean of its divisors is an integer number (787353892650).

Almost surely, 2^{20023015122135} is an apocalyptic number.

20023015122135 is a deficient number, since it is larger than the sum of its proper divisors (17769971725065).

20023015122135 is a wasteful number, since it uses less digits than its factorization.

20023015122135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 807542512 (or 807542509 counting only the distinct ones).

The product of its (nonzero) digits is 3600, while the sum is 27.

Adding to 20023015122135 its reverse (53122151032002), we get a palindrome (73145166154137).

The spelling of 20023015122135 in words is "twenty trillion, twenty-three billion, fifteen million, one hundred twenty-two thousand, one hundred thirty-five".