21233312112300 has 144 divisors (see below), whose sum is σ = 63087497058432. Its totient is φ = 5510854540800.

The previous prime is 21233312112263. The next prime is 21233312112377. The reversal of 21233312112300 is 321121333212.

It is a super-2 number, since 2×21233312112300² (a number of 27 digits) contains 22 as substring.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 696087 + ... + 6553713.

Almost surely, 2^{21233312112300} is an apocalyptic number.

21233312112300 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 21233312112300, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (31543748529216).

21233312112300 is an abundant number, since it is smaller than the sum of its proper divisors (41854184946132).

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

21233312112300 is a wasteful number, since it uses less digits than its factorization.

21233312112300 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5857968 (or 5857961 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

Adding to 21233312112300 its reverse (321121333212), we get a palindrome (21554433445512).

The spelling of 21233312112300 in words is "twenty-one trillion, two hundred thirty-three billion, three hundred twelve million, one hundred twelve thousand, three hundred".