21330133043131 has 8 divisors (see below), whose sum is σ = 23272887345264. Its totient is φ = 19387987290720.

The previous prime is 21330133043119. The next prime is 21330133043183. The reversal of 21330133043131 is 13134033103312.

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

It is a cyclic number.

It is not a de Polignac number, because 21330133043131 - 2⁷ = 21330133043003 is a prime.

It is a super-2 number, since 2×21330133043131² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 21330133043131.

It is not an unprimeable number, because it can be changed into a prime (21330133043101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 152064136 + ... + 152204341.

It is an arithmetic number, because the mean of its divisors is an integer number (2909110918158).

Almost surely, 2^{21330133043131} is an apocalyptic number.

21330133043131 is a deficient number, since it is larger than the sum of its proper divisors (1942754302133).

21330133043131 is a wasteful number, since it uses less digits than its factorization.

21330133043131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 304274861.

The product of its (nonzero) digits is 5832, while the sum is 28.

Adding to 21330133043131 its reverse (13134033103312), we get a palindrome (34464166146443).

The spelling of 21330133043131 in words is "twenty-one trillion, three hundred thirty billion, one hundred thirty-three million, forty-three thousand, one hundred thirty-one".