20236151336121 has 108 divisors (see below), whose sum is σ = 35614377956976. Its totient is φ = 11448956080800.

The previous prime is 20236151336111. The next prime is 20236151336143. The reversal of 20236151336121 is 12163315163202.

20236151336121 is a `hidden beast` number, since 2 + 0 + 2 + 3 + 6 + 1 + 5 + 1 + 33 + 612 + 1 = 666.

It is not a de Polignac number, because 20236151336121 - 2⁷ = 20236151335993 is a prime.

It is not an unprimeable number, because it can be changed into a prime (20236151336111) 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 107 ways as a sum of consecutive naturals, for example, 121380006 + ... + 121546608.

Almost surely, 2^{20236151336121} is an apocalyptic number.

20236151336121 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

It is an amenable number.

20236151336121 is a deficient number, since it is larger than the sum of its proper divisors (15378226620855).

20236151336121 is an equidigital number, since it uses as much as digits as its factorization.

20236151336121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 166834 (or 166714 counting only the distinct ones).

The product of its (nonzero) digits is 38880, while the sum is 36.

Adding to 20236151336121 its reverse (12163315163202), we get a palindrome (32399466499323).

The spelling of 20236151336121 in words is "twenty trillion, two hundred thirty-six billion, one hundred fifty-one million, three hundred thirty-six thousand, one hundred twenty-one".