22123000031 has 12 divisors (see below), whose sum is σ = 25747431696. Its totient is φ = 18928768320.

The previous prime is 22123000019. The next prime is 22123000057. The reversal of 22123000031 is 13000032122.

It is a happy number.

It is not a de Polignac number, because 22123000031 - 2⁶ = 22122999967 is a prime.

It is a super-2 number, since 2×22123000031² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (22123000091) 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, 5375435 + ... + 5379548.

It is an arithmetic number, because the mean of its divisors is an integer number (2145619308).

Almost surely, 2^22123000031 is an apocalyptic number.

22123000031 is a deficient number, since it is larger than the sum of its proper divisors (3624431665).

22123000031 is a wasteful number, since it uses less digits than its factorization.

22123000031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10755022 (or 10755011 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 22123000031 its reverse (13000032122), we get a palindrome (35123032153).

The spelling of 22123000031 in words is "twenty-two billion, one hundred twenty-three million, thirty-one", and thus it is an aban number.