21233232311100 has 72 divisors (see below), whose sum is σ = 61620422790528. Its totient is φ = 5645088926400.

The previous prime is 21233232311059. The next prime is 21233232311117. The reversal of 21233232311100 is 111323233212.

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, 106815264 + ... + 107013863.

It is an arithmetic number, because the mean of its divisors is an integer number (855839205424).

Almost surely, 2^{21233232311100} is an apocalyptic number.

21233232311100 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

21233232311100 is an abundant number, since it is smaller than the sum of its proper divisors (40387190479428).

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

21233232311100 is a wasteful number, since it uses less digits than its factorization.

21233232311100 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 213829475 (or 213829468 counting only the distinct ones).

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

Adding to 21233232311100 its reverse (111323233212), we get a palindrome (21344555544312).

The spelling of 21233232311100 in words is "twenty-one trillion, two hundred thirty-three billion, two hundred thirty-two million, three hundred eleven thousand, one hundred".