20443131422 has 16 divisors (see below), whose sum is σ = 35619883872. Its totient is φ = 8617713120.

The previous prime is 20443131413. The next prime is 20443131437. The reversal of 20443131422 is 22413134402.

It is a junction number, because it is equal to n+sod(n) for n = 20443131391 and 20443131400.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 11968193 + ... + 11969900.

It is an arithmetic number, because the mean of its divisors is an integer number (2226242742).

Almost surely, 2^20443131422 is an apocalyptic number.

20443131422 is a deficient number, since it is larger than the sum of its proper divisors (15176752450).

20443131422 is a wasteful number, since it uses less digits than its factorization.

20443131422 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23938163.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 20443131422 its reverse (22413134402), we get a palindrome (42856265824).

The spelling of 20443131422 in words is "twenty billion, four hundred forty-three million, one hundred thirty-one thousand, four hundred twenty-two".