20433222131 has 32 divisors (see below), whose sum is σ = 25244006400. Its totient is φ = 16141708800.

The previous prime is 20433222119. The next prime is 20433222179. The reversal of 20433222131 is 13122233402.

It is not a de Polignac number, because 20433222131 - 2³⁰ = 19359480307 is a prime.

It is a super-2 number, since 2×20433222131² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20433222097 and 20433222106.

It is not an unprimeable number, because it can be changed into a prime (20433222031) 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 31 ways as a sum of consecutive naturals, for example, 1250786 + ... + 1267016.

It is an arithmetic number, because the mean of its divisors is an integer number (788875200).

Almost surely, 2^20433222131 is an apocalyptic number.

20433222131 is a deficient number, since it is larger than the sum of its proper divisors (4810784269).

20433222131 is a wasteful number, since it uses less digits than its factorization.

20433222131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 16475.

The product of its (nonzero) digits is 1728, while the sum is 23.

Adding to 20433222131 its reverse (13122233402), we get a palindrome (33555455533).

The spelling of 20433222131 in words is "twenty billion, four hundred thirty-three million, two hundred twenty-two thousand, one hundred thirty-one".