23323110543440 has 20 divisors (see below), whose sum is σ = 54226232013684. Its totient is φ = 9329244217344.

The previous prime is 23323110543419. The next prime is 23323110543443. The reversal of 23323110543440 is 4434501132332.

It can be written as a sum of positive squares in 2 ways, for example, as 11935698316864 + 11387412226576 = 3454808^2 + 3374524^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is a self number, because there is not a number n which added to its sum of digits gives 23323110543440.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23323110543443) 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, 145769440817 + ... + 145769440976.

Almost surely, 2^{23323110543440} is an apocalyptic number.

23323110543440 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23323110543440 is an abundant number, since it is smaller than the sum of its proper divisors (30903121470244).

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

23323110543440 is a wasteful number, since it uses less digits than its factorization.

23323110543440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 291538881806 (or 291538881800 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 35.

Adding to 23323110543440 its reverse (4434501132332), we get a palindrome (27757611675772).

The spelling of 23323110543440 in words is "twenty-three trillion, three hundred twenty-three billion, one hundred ten million, five hundred forty-three thousand, four hundred forty".