22123121231323 has 6 divisors (see below), whose sum is σ = 25735059391596. Its totient is φ = 18962675341092.

The previous prime is 22123121231251. The next prime is 22123121231329. The reversal of 22123121231323 is 32313212132122.

It is not a de Polignac number, because 22123121231323 - 2²⁵ = 22123087676891 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 22123121231291 and 22123121231300.

It is not an unprimeable number, because it can be changed into a prime (22123121231329) by changing a digit.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 225746134965 + ... + 225746135062.

It is an arithmetic number, because the mean of its divisors is an integer number (4289176565266).

Almost surely, 2^{22123121231323} is an apocalyptic number.

22123121231323 is a deficient number, since it is larger than the sum of its proper divisors (3611938160273).

22123121231323 is an equidigital number, since it uses as much as digits as its factorization.

22123121231323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 451492270041 (or 451492270034 counting only the distinct ones).

The product of its digits is 5184, while the sum is 28.

Adding to 22123121231323 its reverse (32313212132122), we get a palindrome (54436333363445).

The spelling of 22123121231323 in words is "twenty-two trillion, one hundred twenty-three billion, one hundred twenty-one million, two hundred thirty-one thousand, three hundred twenty-three".