21232223323331 has 8 divisors (see below), whose sum is σ = 21964923975600. Its totient is φ = 20499559672480.

The previous prime is 21232223323309. The next prime is 21232223323351. The reversal of 21232223323331 is 13332332223212.

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 21232223323331 - 2³⁰ = 21231149581507 is a prime.

It is a super-2 number, since 2×21232223323331² (a number of 27 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (21232223323301) 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, 8080400 + ... + 10380621.

It is an arithmetic number, because the mean of its divisors is an integer number (2745615496950).

Almost surely, 2^{21232223323331} is an apocalyptic number.

21232223323331 is a deficient number, since it is larger than the sum of its proper divisors (732700652269).

21232223323331 is a wasteful number, since it uses less digits than its factorization.

21232223323331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 18500709.

The product of its digits is 46656, while the sum is 32.

Adding to 21232223323331 its reverse (13332332223212), we get a palindrome (34564555546543).

The spelling of 21232223323331 in words is "twenty-one trillion, two hundred thirty-two billion, two hundred twenty-three million, three hundred twenty-three thousand, three hundred thirty-one".