22123002031 has 12 divisors (see below), whose sum is σ = 24674656552. Its totient is φ = 19717042464.

The previous prime is 22123002007. The next prime is 22123002047. The reversal of 22123002031 is 13020032122.

It is not a de Polignac number, because 22123002031 - 2⁷ = 22123001903 is a prime.

It is a super-2 number, since 2×22123002031² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 22123001996 and 22123002014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123702031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 1000821 + ... + 1022686.

Almost surely, 2^22123002031 is an apocalyptic number.

22123002031 is a deficient number, since it is larger than the sum of its proper divisors (2551654521).

22123002031 is a wasteful number, since it uses less digits than its factorization.

22123002031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2023578 (or 2023549 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 16.

Adding to 22123002031 its reverse (13020032122), we get a palindrome (35143034153).

The spelling of 22123002031 in words is "twenty-two billion, one hundred twenty-three million, two thousand, thirty-one".