21030332223331 has 8 divisors (see below), whose sum is σ = 21192630300864. Its totient is φ = 20868060830760.

The previous prime is 21030332223311. The next prime is 21030332223337. The reversal of 21030332223331 is 13332223303012.

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 21030332223331 - 2³⁹ = 20480576409443 is a prime.

It is a super-2 number, since 2×21030332223331² (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 21030332223331.

It is not an unprimeable number, because it can be changed into a prime (21030332223337) 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, 5087521 + ... + 8242786.

It is an arithmetic number, because the mean of its divisors is an integer number (2649078787608).

Almost surely, 2^{21030332223331} is an apocalyptic number.

21030332223331 is a deficient number, since it is larger than the sum of its proper divisors (162298077533).

21030332223331 is a wasteful number, since it uses less digits than its factorization.

21030332223331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 13342481.

The product of its (nonzero) digits is 11664, while the sum is 28.

Adding to 21030332223331 its reverse (13332223303012), we get a palindrome (34362555526343).

The spelling of 21030332223331 in words is "twenty-one trillion, thirty billion, three hundred thirty-two million, two hundred twenty-three thousand, three hundred thirty-one".