13131233213 has 16 divisors (see below), whose sum is σ = 15118731264. Its totient is φ = 11171833200.

The previous prime is 13131233197. The next prime is 13131233243. The reversal of 13131233213 is 31233213131.

It is a cyclic number.

It is not a de Polignac number, because 13131233213 - 2⁴ = 13131233197 is a prime.

It is a Curzon number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131233243) 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, 842138 + ... + 857588.

It is an arithmetic number, because the mean of its divisors is an integer number (944920704).

Almost surely, 2^13131233213 is an apocalyptic number.

It is an amenable number.

13131233213 is a deficient number, since it is larger than the sum of its proper divisors (1987498051).

13131233213 is a wasteful number, since it uses less digits than its factorization.

13131233213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16352.

The product of its digits is 972, while the sum is 23.

Adding to 13131233213 its reverse (31233213131), we get a palindrome (44364446344).

The spelling of 13131233213 in words is "thirteen billion, one hundred thirty-one million, two hundred thirty-three thousand, two hundred thirteen".