21232311213033 has 32 divisors (see below), whose sum is σ = 31564446394880. Its totient is φ = 14105831631120.

The previous prime is 21232311213011. The next prime is 21232311213067. The reversal of 21232311213033 is 33031211323212.

21232311213033 is a `hidden beast` number, since 2 + 1 + 2 + 3 + 231 + 121 + 303 + 3 = 666.

It is not a de Polignac number, because 21232311213033 - 2⁶ = 21232311212969 is a prime.

It is a super-3 number, since 3×21232311213033³ (a number of 41 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21232311212988 and 21232311213006.

It is not an unprimeable number, because it can be changed into a prime (21232311213133) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 7910598 + ... + 10249008.

It is an arithmetic number, because the mean of its divisors is an integer number (986388949840).

Almost surely, 2^{21232311213033} is an apocalyptic number.

It is an amenable number.

21232311213033 is a deficient number, since it is larger than the sum of its proper divisors (10332135181847).

21232311213033 is a wasteful number, since it uses less digits than its factorization.

21232311213033 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2339586 (or 2339580 counting only the distinct ones).

The product of its (nonzero) digits is 3888, while the sum is 27.

Adding to 21232311213033 its reverse (33031211323212), we get a palindrome (54263522536245).

The spelling of 21232311213033 in words is "twenty-one trillion, two hundred thirty-two billion, three hundred eleven million, two hundred thirteen thousand, thirty-three".