20231563255300 has 144 divisors (see below), whose sum is σ = 47541488400000. Its totient is φ = 7447020871680.

The previous prime is 20231563255291. The next prime is 20231563255367. The reversal of 20231563255300 is 355236513202.

It is a Harshad number since it is a multiple of its sum of digits (37).

It is a self number, because there is not a number n which added to its sum of digits gives 20231563255300.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 41869476 + ... + 42349924.

It is an arithmetic number, because the mean of its divisors is an integer number (330149225000).

Almost surely, 2^{20231563255300} is an apocalyptic number.

20231563255300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 20231563255300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (23770744200000).

20231563255300 is an abundant number, since it is smaller than the sum of its proper divisors (27309925144700).

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

20231563255300 is a wasteful number, since it uses less digits than its factorization.

20231563255300 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 481118 (or 481111 counting only the distinct ones).

The product of its (nonzero) digits is 162000, while the sum is 37.

Adding to 20231563255300 its reverse (355236513202), we get a palindrome (20586799768502).

The spelling of 20231563255300 in words is "twenty trillion, two hundred thirty-one billion, five hundred sixty-three million, two hundred fifty-five thousand, three hundred".