21330440412133 has 8 divisors (see below), whose sum is σ = 22605283683648. Its totient is φ = 20057831749824.

The previous prime is 21330440412131. The next prime is 21330440412137. The reversal of 21330440412133 is 33121404403312.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 21330440412133 - 2¹ = 21330440412131 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21330440412095 and 21330440412104.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21330440412131) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 558632641 + ... + 558670822.

It is an arithmetic number, because the mean of its divisors is an integer number (2825660460456).

Almost surely, 2^{21330440412133} is an apocalyptic number.

It is an amenable number.

21330440412133 is a deficient number, since it is larger than the sum of its proper divisors (1274843271515).

21330440412133 is a wasteful number, since it uses less digits than its factorization.

21330440412133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1117304603.

The product of its (nonzero) digits is 20736, while the sum is 31.

Adding to 21330440412133 its reverse (33121404403312), we get a palindrome (54451844815445).

The spelling of 21330440412133 in words is "twenty-one trillion, three hundred thirty billion, four hundred forty million, four hundred twelve thousand, one hundred thirty-three".