22043236123 has 4 divisors (see below), whose sum is σ = 22754308288. Its totient is φ = 21332163960.

The previous prime is 22043236079. The next prime is 22043236141. The reversal of 22043236123 is 32163234022.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 32163234022 = 2 ⋅16081617011.

It is a cyclic number.

It is not a de Polignac number, because 22043236123 - 2²⁵ = 22009681691 is a prime.

It is a super-2 number, since 2×22043236123² (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 = 22043236091 and 22043236100.

It is not an unprimeable number, because it can be changed into a prime (22043236223) 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, 355536036 + ... + 355536097.

It is an arithmetic number, because the mean of its divisors is an integer number (5688577072).

Almost surely, 2^22043236123 is an apocalyptic number.

22043236123 is a deficient number, since it is larger than the sum of its proper divisors (711072165).

22043236123 is an equidigital number, since it uses as much as digits as its factorization.

22043236123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 711072164.

The product of its (nonzero) digits is 10368, while the sum is 28.

The spelling of 22043236123 in words is "twenty-two billion, forty-three million, two hundred thirty-six thousand, one hundred twenty-three".