23242403312540 has 24 divisors (see below), whose sum is σ = 48810528704112. Its totient is φ = 9296679087360.

The previous prime is 23242403312533. The next prime is 23242403312543. The reversal of 23242403312540 is 4521330424232.

It is a self number, because there is not a number n which added to its sum of digits gives 23242403312540.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (23242403312543) 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, 16963949 + ... + 18282788.

It is an arithmetic number, because the mean of its divisors is an integer number (2033772029338).

Almost surely, 2^{23242403312540} is an apocalyptic number.

23242403312540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23242403312540 is an abundant number, since it is smaller than the sum of its proper divisors (25568125391572).

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

23242403312540 is a wasteful number, since it uses less digits than its factorization.

23242403312540 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35279717 (or 35279715 counting only the distinct ones).

The product of its (nonzero) digits is 138240, while the sum is 35.

Adding to 23242403312540 its reverse (4521330424232), we get a palindrome (27763733736772).

The spelling of 23242403312540 in words is "twenty-three trillion, two hundred forty-two billion, four hundred three million, three hundred twelve thousand, five hundred forty".