23203244540 has 48 divisors (see below), whose sum is σ = 55774075392. Its totient is φ = 7943071296.

The previous prime is 23203244539. The next prime is 23203244569. The reversal of 23203244540 is 4544230232.

It is a happy number.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 37502 + ... + 218661.

It is an arithmetic number, because the mean of its divisors is an integer number (1161959904).

Almost surely, 2^23203244540 is an apocalyptic number.

23203244540 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23203244540 is an abundant number, since it is smaller than the sum of its proper divisors (32570830852).

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

23203244540 is a wasteful number, since it uses less digits than its factorization.

23203244540 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 256826 (or 256824 counting only the distinct ones).

The product of its (nonzero) digits is 23040, while the sum is 29.

Adding to 23203244540 its reverse (4544230232), we get a palindrome (27747474772).

The spelling of 23203244540 in words is "twenty-three billion, two hundred three million, two hundred forty-four thousand, five hundred forty".