21133435300542 has 32 divisors (see below), whose sum is σ = 47962406361600. Its totient is φ = 6894595912824.

The previous prime is 21133435300477. The next prime is 21133435300561. The reversal of 21133435300542 is 24500353433112.

21133435300542 is a `hidden beast` number, since 2 + 1 + 1 + 3 + 343 + 5 + 300 + 5 + 4 + 2 = 666.

It is a junction number, because it is equal to n+sod(n) for n = 21133435300497 and 21133435300506.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4163400792 + ... + 4163405867.

It is an arithmetic number, because the mean of its divisors is an integer number (1498825198800).

Almost surely, 2^{21133435300542} is an apocalyptic number.

21133435300542 is an abundant number, since it is smaller than the sum of its proper divisors (26828971061058).

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

21133435300542 is a wasteful number, since it uses less digits than its factorization.

21133435300542 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 8326806717 (or 8326806711 counting only the distinct ones).

The product of its (nonzero) digits is 129600, while the sum is 36.

Adding to 21133435300542 its reverse (24500353433112), we get a palindrome (45633788733654).

The spelling of 21133435300542 in words is "twenty-one trillion, one hundred thirty-three billion, four hundred thirty-five million, three hundred thousand, five hundred forty-two".