13231321202 has 24 divisors (see below), whose sum is σ = 22140905808. Its totient is φ = 5924464920.

The previous prime is 13231321171. The next prime is 13231321261. The reversal of 13231321202 is 20212313231.

It is an unprimeable number.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 391808 + ... + 424235.

It is an arithmetic number, because the mean of its divisors is an integer number (922537742).

Almost surely, 2^13231321202 is an apocalyptic number.

13231321202 is a deficient number, since it is larger than the sum of its proper divisors (8909584606).

13231321202 is a wasteful number, since it uses less digits than its factorization.

13231321202 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 816134 (or 816123 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 13231321202 its reverse (20212313231), we get a palindrome (33443634433).

It can be divided in two parts, 13231 and 321202, that added together give a palindrome (334433).

The spelling of 13231321202 in words is "thirteen billion, two hundred thirty-one million, three hundred twenty-one thousand, two hundred two".