21313140454233 has 48 divisors (see below), whose sum is σ = 32086046393856. Its totient is φ = 14137534713600.

The previous prime is 21313140454169. The next prime is 21313140454253. The reversal of 21313140454233 is 33245404131312.

21313140454233 is a `hidden beast` number, since 2 + 1 + 3 + 13 + 1 + 404 + 5 + 4 + 233 = 666.

It is not a de Polignac number, because 21313140454233 - 2⁶ = 21313140454169 is a prime.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (21313140454253) by changing a digit.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 102909841 + ... + 103116737.

It is an arithmetic number, because the mean of its divisors is an integer number (668459299872).

Almost surely, 2^{21313140454233} is an apocalyptic number.

It is an amenable number.

21313140454233 is a deficient number, since it is larger than the sum of its proper divisors (10772905939623).

21313140454233 is a wasteful number, since it uses less digits than its factorization.

21313140454233 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 209036 (or 209024 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 36.

Adding to 21313140454233 its reverse (33245404131312), we get a palindrome (54558544585545).

The spelling of 21313140454233 in words is "twenty-one trillion, three hundred thirteen billion, one hundred forty million, four hundred fifty-four thousand, two hundred thirty-three".