13220331233 has 8 divisors (see below), whose sum is σ = 13939857120. Its totient is φ = 12503177280.

The previous prime is 13220331203. The next prime is 13220331247. The reversal of 13220331233 is 33213302231.

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 13220331233 - 2²² = 13216136929 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 13220331199 and 13220331208.

It is not an unprimeable number, because it can be changed into a prime (13220331203) 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, 581528 + ... + 603833.

It is an arithmetic number, because the mean of its divisors is an integer number (1742482140).

Almost surely, 2^13220331233 is an apocalyptic number.

It is an amenable number.

13220331233 is a deficient number, since it is larger than the sum of its proper divisors (719525887).

13220331233 is a wasteful number, since it uses less digits than its factorization.

13220331233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1185967.

The product of its (nonzero) digits is 1944, while the sum is 23.

Adding to 13220331233 its reverse (33213302231), we get a palindrome (46433633464).

The spelling of 13220331233 in words is "thirteen billion, two hundred twenty million, three hundred thirty-one thousand, two hundred thirty-three".