21244233431300 has 72 divisors (see below), whose sum is σ = 52477455102912. Its totient is φ = 7389298576000.

The previous prime is 21244233431261. The next prime is 21244233431303. The reversal of 21244233431300 is 313433244212.

It is not an unprimeable number, because it can be changed into a prime (21244233431303) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 419821211 + ... + 419871810.

It is an arithmetic number, because the mean of its divisors is an integer number (728853543096).

Almost surely, 2^{21244233431300} is an apocalyptic number.

21244233431300 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21244233431300 is an abundant number, since it is smaller than the sum of its proper divisors (31233221671612).

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

21244233431300 is a wasteful number, since it uses less digits than its factorization.

21244233431300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 839693069 (or 839693062 counting only the distinct ones).

The product of its (nonzero) digits is 41472, while the sum is 32.

Adding to 21244233431300 its reverse (313433244212), we get a palindrome (21557666675512).

The spelling of 21244233431300 in words is "twenty-one trillion, two hundred forty-four billion, two hundred thirty-three million, four hundred thirty-one thousand, three hundred".