21233210100311 has 16 divisors (see below), whose sum is σ = 23233058484768. Its totient is φ = 19245040051200.

The previous prime is 21233210100259. The next prime is 21233210100353. The reversal of 21233210100311 is 11300101233212.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 21233210100311 - 2¹⁸ = 21233209838167 is a prime.

It is a super-2 number, since 2×21233210100311² (a number of 27 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21233210100911) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2825285 + ... + 7102721.

It is an arithmetic number, because the mean of its divisors is an integer number (1452066155298).

Almost surely, 2^{21233210100311} is an apocalyptic number.

21233210100311 is a deficient number, since it is larger than the sum of its proper divisors (1999848384457).

21233210100311 is a wasteful number, since it uses less digits than its factorization.

21233210100311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4278802.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 21233210100311 its reverse (11300101233212), we get a palindrome (32533311333523).

The spelling of 21233210100311 in words is "twenty-one trillion, two hundred thirty-three billion, two hundred ten million, one hundred thousand, three hundred eleven".