20322155133 has 12 divisors (see below), whose sum is σ = 33547684768. Its totient is φ = 11612660040.

The previous prime is 20322155123. The next prime is 20322155141. The reversal of 20322155133 is 33155122302.

It is a happy number.

It is not a de Polignac number, because 20322155133 - 2¹³ = 20322146941 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 20322155097 and 20322155106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20322155123) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 161286883 + ... + 161287008.

Almost surely, 2^20322155133 is an apocalyptic number.

It is an amenable number.

20322155133 is a deficient number, since it is larger than the sum of its proper divisors (13225529635).

20322155133 is a wasteful number, since it uses less digits than its factorization.

20322155133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 322573904 (or 322573901 counting only the distinct ones).

The product of its (nonzero) digits is 5400, while the sum is 27.

Adding to 20322155133 its reverse (33155122302), we get a palindrome (53477277435).

The spelling of 20322155133 in words is "twenty billion, three hundred twenty-two million, one hundred fifty-five thousand, one hundred thirty-three".