21100113230133 has 12 divisors (see below), whose sum is σ = 32726706234720. Its totient is φ = 12057207559992.

The previous prime is 21100113230123. The next prime is 21100113230153. The reversal of 21100113230133 is 33103231100112.

It is a happy number.

It is not a de Polignac number, because 21100113230133 - 2¹⁰ = 21100113229109 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21100113230123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 71769092473 + ... + 71769092766.

It is an arithmetic number, because the mean of its divisors is an integer number (2727225519560).

Almost surely, 2^{21100113230133} is an apocalyptic number.

It is an amenable number.

21100113230133 is a deficient number, since it is larger than the sum of its proper divisors (11626593004587).

21100113230133 is a wasteful number, since it uses less digits than its factorization.

21100113230133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 143538185256 (or 143538185249 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 21.

Adding to 21100113230133 its reverse (33103231100112), we get a palindrome (54203344330245).

It can be divided in two parts, 21100113 and 230133, that added together give a triangular number (21330246 = T₆₅₃₁).

The spelling of 21100113230133 in words is "twenty-one trillion, one hundred billion, one hundred thirteen million, two hundred thirty thousand, one hundred thirty-three".