23122356544 has 28 divisors (see below), whose sum is σ = 52438202464. Its totient is φ = 9909581184.

The previous prime is 23122356541. The next prime is 23122356583. The reversal of 23122356544 is 44565322132.

It is a tau number, because it is divible by the number of its divisors (28).

It is a super-3 number, since 3×23122356544³ (a number of 32 digits) contains 333 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23122356541) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 25805754 + ... + 25806649.

Almost surely, 2^23122356544 is an apocalyptic number.

It is an amenable number.

23122356544 is an abundant number, since it is smaller than the sum of its proper divisors (29315845920).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

23122356544 is an equidigital number, since it uses as much as digits as its factorization.

23122356544 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 51612422 (or 51612412 counting only the distinct ones).

The product of its digits is 172800, while the sum is 37.

Adding to 23122356544 its reverse (44565322132), we get a palindrome (67687678676).

The spelling of 23122356544 in words is "twenty-three billion, one hundred twenty-two million, three hundred fifty-six thousand, five hundred forty-four".