20413335020121 has 24 divisors (see below), whose sum is σ = 29558756092320. Its totient is φ = 13575282616896.

The previous prime is 20413335020033. The next prime is 20413335020153. The reversal of 20413335020121 is 12102053331402.

20413335020121 is a `hidden beast` number, since 2 + 0 + 4 + 1 + 3 + 33 + 502 + 0 + 121 = 666.

It is not a de Polignac number, because 20413335020121 - 2¹³ = 20413335011929 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20413335020171) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 46454986 + ... + 46892348.

It is an arithmetic number, because the mean of its divisors is an integer number (1231614837180).

Almost surely, 2^{20413335020121} is an apocalyptic number.

It is an amenable number.

20413335020121 is a deficient number, since it is larger than the sum of its proper divisors (9145421072199).

20413335020121 is a wasteful number, since it uses less digits than its factorization.

20413335020121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 450165 (or 450162 counting only the distinct ones).

The product of its (nonzero) digits is 4320, while the sum is 27.

Adding to 20413335020121 its reverse (12102053331402), we get a palindrome (32515388351523).

The spelling of 20413335020121 in words is "twenty trillion, four hundred thirteen billion, three hundred thirty-five million, twenty thousand, one hundred twenty-one".