13131101 has 4 divisors (see below), whose sum is σ = 13171104. Its totient is φ = 13091100.

The previous prime is 13131067. The next prime is 13131103. The reversal of 13131101 is 10113131.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 13131101 - 2⁶ = 13131037 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (13131103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 19505 + ... + 20166.

It is an arithmetic number, because the mean of its divisors is an integer number (3292776).

Almost surely, 2^13131101 is an apocalyptic number.

It is an amenable number.

13131101 is a deficient number, since it is larger than the sum of its proper divisors (40003).

13131101 is an equidigital number, since it uses as much as digits as its factorization.

13131101 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 40002.

The product of its (nonzero) digits is 9, while the sum is 11.

The square root of 13131101 is about 3623.6861067151. The cubic root of 13131101 is about 235.9212427522.

Adding to 13131101 its reverse (10113131), we get a palindrome (23244232).

It can be divided in two parts, 13131 and 101, that multiplied together give a palindrome (1326231).

The spelling of 13131101 in words is "thirteen million, one hundred thirty-one thousand, one hundred one".