21113400455433 has 96 divisors (see below), whose sum is σ = 36110106160128. Its totient is φ = 11718993686400.

The previous prime is 21113400455419. The next prime is 21113400455467. The reversal of 21113400455433 is 33455400431112.

21113400455433 is a `hidden beast` number, since 21 + 1 + 13 + 40 + 0 + 4 + 554 + 33 = 666.

It is not a de Polignac number, because 21113400455433 - 2¹² = 21113400451337 is a prime.

It is not an unprimeable number, because it can be changed into a prime (21113400455473) by changing a digit.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 998589460 + ... + 998610602.

It is an arithmetic number, because the mean of its divisors is an integer number (376146939168).

Almost surely, 2^{21113400455433} is an apocalyptic number.

It is an amenable number.

21113400455433 is a deficient number, since it is larger than the sum of its proper divisors (14996705704695).

21113400455433 is a wasteful number, since it uses less digits than its factorization.

21113400455433 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 27227 (or 27224 counting only the distinct ones).

The product of its (nonzero) digits is 86400, while the sum is 36.

Adding to 21113400455433 its reverse (33455400431112), we get a palindrome (54568800886545).

The spelling of 21113400455433 in words is "twenty-one trillion, one hundred thirteen billion, four hundred million, four hundred fifty-five thousand, four hundred thirty-three".