20522054421031 has 4 divisors (see below), whose sum is σ = 21414317656752. Its totient is φ = 19629791185312.

The previous prime is 20522054421007. The next prime is 20522054421109. The reversal of 20522054421031 is 13012445022502.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 20522054421031 - 2²¹ = 20522052323879 is a prime.

It is a super-2 number, since 2×20522054421031² (a number of 27 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20522054420984 and 20522054421002.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20522054421131) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 446131617826 + ... + 446131617871.

It is an arithmetic number, because the mean of its divisors is an integer number (5353579414188).

Almost surely, 2^{20522054421031} is an apocalyptic number.

20522054421031 is a deficient number, since it is larger than the sum of its proper divisors (892263235721).

20522054421031 is an equidigital number, since it uses as much as digits as its factorization.

20522054421031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 892263235720.

The product of its (nonzero) digits is 19200, while the sum is 31.

Adding to 20522054421031 its reverse (13012445022502), we get a palindrome (33534499443533).

The spelling of 20522054421031 in words is "twenty trillion, five hundred twenty-two billion, fifty-four million, four hundred twenty-one thousand, thirty-one".