21210133112311 has 8 divisors (see below), whose sum is σ = 24918198341904. Its totient is φ = 17798713101120.

The previous prime is 21210133112299. The next prime is 21210133112341. The reversal of 21210133112311 is 11321133101212.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 21210133112311 - 2⁵ = 21210133112279 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21210133112341) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 74161304446 + ... + 74161304731.

It is an arithmetic number, because the mean of its divisors is an integer number (3114774792738).

Almost surely, 2^{21210133112311} is an apocalyptic number.

21210133112311 is a deficient number, since it is larger than the sum of its proper divisors (3708065229593).

21210133112311 is a wasteful number, since it uses less digits than its factorization.

21210133112311 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 148322609201.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 21210133112311 its reverse (11321133101212), we get a palindrome (32531266213523).

The spelling of 21210133112311 in words is "twenty-one trillion, two hundred ten billion, one hundred thirty-three million, one hundred twelve thousand, three hundred eleven".