23205343330040 has 96 divisors (see below), whose sum is σ = 54815272976880. Its totient is φ = 8839294700544.

The previous prime is 23205343330031. The next prime is 23205343330067. The reversal of 23205343330040 is 4003334350232.

It is a junction number, because it is equal to n+sod(n) for n = 23205343329979 and 23205343330006.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2269034 + ... + 7180473.

Almost surely, 2^{23205343330040} is an apocalyptic number.

23205343330040 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

23205343330040 is an abundant number, since it is smaller than the sum of its proper divisors (31609929646840).

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

23205343330040 is a wasteful number, since it uses less digits than its factorization.

23205343330040 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 9449649 (or 9449616 counting only the distinct ones).

The product of its (nonzero) digits is 77760, while the sum is 32.

Adding to 23205343330040 its reverse (4003334350232), we get a palindrome (27208677680272).

The spelling of 23205343330040 in words is "twenty-three trillion, two hundred five billion, three hundred forty-three million, three hundred thirty thousand, forty".