20123422033 has 12 divisors (see below), whose sum is σ = 23820606964. Its totient is φ = 16886786400.

The previous prime is 20123422013. The next prime is 20123422049. The reversal of 20123422033 is 33022432102.

It can be written as a sum of positive squares in 2 ways, for example, as 1241364289 + 18882057744 = 35233^2 + 137412^2 .

It is a de Polignac number, because none of the positive numbers 2^k-20123422033 is a prime.

It is a super-2 number, since 2×20123422033² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 20123421995 and 20123422013.

It is not an unprimeable number, because it can be changed into a prime (20123422003) 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, 6394938 + ... + 6398083.

Almost surely, 2^20123422033 is an apocalyptic number.

It is an amenable number.

20123422033 is a deficient number, since it is larger than the sum of its proper divisors (3697184931).

20123422033 is a wasteful number, since it uses less digits than its factorization.

20123422033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12793056 (or 12793045 counting only the distinct ones).

The product of its (nonzero) digits is 1728, while the sum is 22.

Adding to 20123422033 its reverse (33022432102), we get a palindrome (53145854135).

The spelling of 20123422033 in words is "twenty billion, one hundred twenty-three million, four hundred twenty-two thousand, thirty-three".