20450122420131 has 48 divisors (see below), whose sum is σ = 31365684230400. Its totient is φ = 12811498767936.

The previous prime is 20450122420129. The next prime is 20450122420163. The reversal of 20450122420131 is 13102422105402.

20450122420131 is a `hidden beast` number, since 2 + 0 + 4 + 501 + 2 + 2 + 4 + 20 + 131 = 666.

It is not a de Polignac number, because 20450122420131 - 2¹ = 20450122420129 is a prime.

It is a super-2 number, since 2×20450122420131² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20450122420095 and 20450122420104.

It is not an unprimeable number, because it can be changed into a prime (20450122420031) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 18754101 + ... + 19814553.

It is an arithmetic number, because the mean of its divisors is an integer number (653451754800).

Almost surely, 2^{20450122420131} is an apocalyptic number.

20450122420131 is a deficient number, since it is larger than the sum of its proper divisors (10915561810269).

20450122420131 is a wasteful number, since it uses less digits than its factorization.

20450122420131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1062120 (or 1062117 counting only the distinct ones).

The product of its (nonzero) digits is 3840, while the sum is 27.

Adding to 20450122420131 its reverse (13102422105402), we get a palindrome (33552544525533).

The spelling of 20450122420131 in words is "twenty trillion, four hundred fifty billion, one hundred twenty-two million, four hundred twenty thousand, one hundred thirty-one".