20413222131 has 16 divisors (see below), whose sum is σ = 28404449280. Its totient is φ = 13015548480.

The previous prime is 20413222091. The next prime is 20413222163. The reversal of 20413222131 is 13122231402.

It is not a de Polignac number, because 20413222131 - 2¹¹ = 20413220083 is a prime.

It is a super-2 number, since 2×20413222131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20413222098 and 20413222107.

It is not an unprimeable number, because it can be changed into a prime (20413222631) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 874510 + ... + 897548.

It is an arithmetic number, because the mean of its divisors is an integer number (1775278080).

Almost surely, 2^20413222131 is an apocalyptic number.

20413222131 is a deficient number, since it is larger than the sum of its proper divisors (7991227149).

20413222131 is a wasteful number, since it uses less digits than its factorization.

20413222131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35906.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 20413222131 its reverse (13122231402), we get a palindrome (33535453533).

The spelling of 20413222131 in words is "twenty billion, four hundred thirteen million, two hundred twenty-two thousand, one hundred thirty-one".