22506436123 has 8 divisors (see below), whose sum is σ = 23767930368. Its totient is φ = 21268521384.

The previous prime is 22506436103. The next prime is 22506436129. The reversal of 22506436123 is 32163460522.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-22506436123 is a prime.

It is a super-2 number, since 2×22506436123² (a number of 22 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (22506436129) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 5892915 + ... + 5896732.

It is an arithmetic number, because the mean of its divisors is an integer number (2970991296).

Almost surely, 2^22506436123 is an apocalyptic number.

22506436123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

22506436123 is a deficient number, since it is larger than the sum of its proper divisors (1261494245).

22506436123 is a wasteful number, since it uses less digits than its factorization.

22506436123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 11789753.

The product of its (nonzero) digits is 51840, while the sum is 34.

Adding to 22506436123 its reverse (32163460522), we get a palindrome (54669896645).

The spelling of 22506436123 in words is "twenty-two billion, five hundred six million, four hundred thirty-six thousand, one hundred twenty-three".