20111243104300 has 72 divisors (see below), whose sum is σ = 45547111798272. Its totient is φ = 7693340424000.

The previous prime is 20111243104297. The next prime is 20111243104319. The reversal of 20111243104300 is 340134211102.

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, 11930845 + ... + 13511755.

It is an arithmetic number, because the mean of its divisors is an integer number (632598774976).

Almost surely, 2^{20111243104300} is an apocalyptic number.

20111243104300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

20111243104300 is an abundant number, since it is smaller than the sum of its proper divisors (25435868693972).

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

20111243104300 is a wasteful number, since it uses less digits than its factorization.

20111243104300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1586479 (or 1586472 counting only the distinct ones).

The product of its (nonzero) digits is 576, while the sum is 22.

Adding to 20111243104300 its reverse (340134211102), we get a palindrome (20451377315402).

The spelling of 20111243104300 in words is "twenty trillion, one hundred eleven billion, two hundred forty-three million, one hundred four thousand, three hundred".