20522460231 has 288 divisors, whose sum is σ = 41409688320. Its totient is φ = 9664800768.

The previous prime is 20522460191. The next prime is 20522460241. The reversal of 20522460231 is 13206422502.

It is a happy number.

20522460231 is a `hidden beast` number, since 2 + 0 + 5 + 2 + 24 + 602 + 31 = 666.

It is not a de Polignac number, because 20522460231 - 2⁹ = 20522459719 is a prime.

It is a super-2 number, since 2×20522460231² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20522460195 and 20522460204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522460241) 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 287 ways as a sum of consecutive naturals, for example, 247258516 + ... + 247258598.

It is an arithmetic number, because the mean of its divisors is an integer number (143783640).

Almost surely, 2^20522460231 is an apocalyptic number.

20522460231 is a gapful number since it is divisible by the number (21) formed by its first and last digit.

20522460231 is a primitive abundant number, since it is smaller than the sum of its proper divisors, none of which is abundant.

20522460231 is a wasteful number, since it uses less digits than its factorization.

20522460231 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 235 (or 225 counting only the distinct ones).

The product of its (nonzero) digits is 5760, while the sum is 27.

Adding to 20522460231 its reverse (13206422502), we get a palindrome (33728882733).

The spelling of 20522460231 in words is "twenty billion, five hundred twenty-two million, four hundred sixty thousand, two hundred thirty-one".