13316131 has 4 divisors (see below), whose sum is σ = 14017000. Its totient is φ = 12615264.

The previous prime is 13316129. The next prime is 13316141. The reversal of 13316131 is 13161331.

13316131 = T₂₉₇₈ + T₂₉₇₉ + T₂₉₈₀.

13316131 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 13316131 - 2¹ = 13316129 is a prime.

It is a super-2 number, since 2×13316131² = 354638689618322, which contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 700849 = 13316131 / (1 + 3 + 3 + 1 + 6 + 1 + 3 + 1).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 13316099 and 13316108.

It is not an unprimeable number, because it can be changed into a prime (13316101) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 350406 + ... + 350443.

It is an arithmetic number, because the mean of its divisors is an integer number (3504250).

Almost surely, 2^13316131 is an apocalyptic number.

13316131 is the 2980-th centered triangular number.

13316131 is a deficient number, since it is larger than the sum of its proper divisors (700869).

13316131 is an equidigital number, since it uses as much as digits as its factorization.

13316131 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 700868.

The product of its digits is 162, while the sum is 19.

The square root of 13316131 is about 3649.1274299482. The cubic root of 13316131 is about 237.0241983042.

Adding to 13316131 its reverse (13161331), we get a palindrome (26477462).

The spelling of 13316131 in words is "thirteen million, three hundred sixteen thousand, one hundred thirty-one".