13131231221110 has 128 divisors (see below), whose sum is σ = 26869132339200. Its totient is φ = 4593529543680.

The previous prime is 13131231221083. The next prime is 13131231221113. The reversal of 13131231221110 is 1112213213131.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131231221113) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 301215415 + ... + 301259005.

It is an arithmetic number, because the mean of its divisors is an integer number (209915096400).

Almost surely, 2^{13131231221110} is an apocalyptic number.

13131231221110 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

13131231221110 is an abundant number, since it is smaller than the sum of its proper divisors (13737901118090).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

13131231221110 is a wasteful number, since it uses less digits than its factorization.

13131231221110 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 46046.

The product of its (nonzero) digits is 216, while the sum is 22.

Adding to 13131231221110 its reverse (1112213213131), we get a palindrome (14243444434241).

The spelling of 13131231221110 in words is "thirteen trillion, one hundred thirty-one billion, two hundred thirty-one million, two hundred twenty-one thousand, one hundred ten".