21033231032133 has 24 divisors (see below), whose sum is σ = 30808413262848. Its totient is φ = 13826395118592.

The previous prime is 21033231032119. The next prime is 21033231032167. The reversal of 21033231032133 is 33123013233012.

21033231032133 is a `hidden beast` number, since 2 + 1 + 0 + 3 + 323 + 10 + 321 + 3 + 3 = 666.

It is not a de Polignac number, because 21033231032133 - 2⁸ = 21033231031877 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 21033231032097 and 21033231032106.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21033231031133) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 56260860 + ... + 56633477.

It is an arithmetic number, because the mean of its divisors is an integer number (1283683885952).

Almost surely, 2^{21033231032133} is an apocalyptic number.

It is an amenable number.

21033231032133 is a deficient number, since it is larger than the sum of its proper divisors (9775182230715).

21033231032133 is a wasteful number, since it uses less digits than its factorization.

21033231032133 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 112894633 (or 112894630 counting only the distinct ones).

The product of its (nonzero) digits is 5832, while the sum is 27.

Adding to 21033231032133 its reverse (33123013233012), we get a palindrome (54156244265145).

The spelling of 21033231032133 in words is "twenty-one trillion, thirty-three billion, two hundred thirty-one million, thirty-two thousand, one hundred thirty-three".