21333330132331 has 8 divisors (see below), whose sum is σ = 25039893283040. Its totient is φ = 17791503121728.

The previous prime is 21333330132299. The next prime is 21333330132337. The reversal of 21333330132331 is 13323103333312.

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

It is not a de Polignac number, because 21333330132331 - 2⁵ = 21333330132299 is a prime.

It is a super-2 number, since 2×21333330132331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21333330132293 and 21333330132302.

It is not an unprimeable number, because it can be changed into a prime (21333330132337) 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, 41184034746 + ... + 41184035263.

It is an arithmetic number, because the mean of its divisors is an integer number (3129986660380).

Almost surely, 2^{21333330132331} is an apocalyptic number.

21333330132331 is a deficient number, since it is larger than the sum of its proper divisors (3706563150709).

21333330132331 is an equidigital number, since it uses as much as digits as its factorization.

21333330132331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 82368070053.

The product of its (nonzero) digits is 26244, while the sum is 31.

Adding to 21333330132331 its reverse (13323103333312), we get a palindrome (34656433465643).

The spelling of 21333330132331 in words is "twenty-one trillion, three hundred thirty-three billion, three hundred thirty million, one hundred thirty-two thousand, three hundred thirty-one".