13231021233 has 16 divisors (see below), whose sum is σ = 17681279616. Its totient is φ = 8800746240.

The previous prime is 13231021231. The next prime is 13231021249. The reversal of 13231021233 is 33212013231.

It is not a de Polignac number, because 13231021233 - 2¹ = 13231021231 is a prime.

It is not an unprimeable number, because it can be changed into a prime (13231021231) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 3516073 + ... + 3519833.

It is an arithmetic number, because the mean of its divisors is an integer number (1105079976).

Almost surely, 2^13231021233 is an apocalyptic number.

It is an amenable number.

13231021233 is a deficient number, since it is larger than the sum of its proper divisors (4450258383).

13231021233 is a wasteful number, since it uses less digits than its factorization.

13231021233 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6104.

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 13231021233 its reverse (33212013231), we get a palindrome (46443034464).

The spelling of 13231021233 in words is "thirteen billion, two hundred thirty-one million, twenty-one thousand, two hundred thirty-three".