20322230531 has 4 divisors (see below), whose sum is σ = 20324640864. Its totient is φ = 20319820200.

The previous prime is 20322230441. The next prime is 20322230567. The reversal of 20322230531 is 13503222302.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 13503222302 = 2 ⋅6751611151.

It is a cyclic number.

It is not a de Polignac number, because 20322230531 - 2³⁴ = 3142361347 is a prime.

It is a super-2 number, since 2×20322230531² (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 = 20322230497 and 20322230506.

It is not an unprimeable number, because it can be changed into a prime (20322230431) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1192475 + ... + 1209396.

It is an arithmetic number, because the mean of its divisors is an integer number (5081160216).

Almost surely, 2^20322230531 is an apocalyptic number.

20322230531 is a deficient number, since it is larger than the sum of its proper divisors (2410333).

20322230531 is an equidigital number, since it uses as much as digits as its factorization.

20322230531 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2410332.

The product of its (nonzero) digits is 2160, while the sum is 23.

Adding to 20322230531 its reverse (13503222302), we get a palindrome (33825452833).

The spelling of 20322230531 in words is "twenty billion, three hundred twenty-two million, two hundred thirty thousand, five hundred thirty-one".