21132331301333 has 4 divisors (see below), whose sum is σ = 24151235772960. Its totient is φ = 18113426829708.

The previous prime is 21132331301329. The next prime is 21132331301371. The reversal of 21132331301333 is 33310313323112.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is not a de Polignac number, because 21132331301333 - 2² = 21132331301329 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 21132331301296 and 21132331301305.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (21132331301383) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1509452235803 + ... + 1509452235816.

It is an arithmetic number, because the mean of its divisors is an integer number (6037808943240).

Almost surely, 2^{21132331301333} is an apocalyptic number.

It is an amenable number.

21132331301333 is a deficient number, since it is larger than the sum of its proper divisors (3018904471627).

21132331301333 is an equidigital number, since it uses as much as digits as its factorization.

21132331301333 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3018904471626.

The product of its (nonzero) digits is 8748, while the sum is 29.

Adding to 21132331301333 its reverse (33310313323112), we get a palindrome (54442644624445).

The spelling of 21132331301333 in words is "twenty-one trillion, one hundred thirty-two billion, three hundred thirty-one million, three hundred one thousand, three hundred thirty-three".