13316231131 has 12 divisors (see below), whose sum is σ = 15744252720. Its totient is φ = 11226796560.

The previous prime is 13316231129. The next prime is 13316231177. The reversal of 13316231131 is 13113261331.

It is not a de Polignac number, because 13316231131 - 2¹ = 13316231129 is a prime.

It is a super-2 number, since 2×13316231131² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13316231096 and 13316231105.

It is not an unprimeable number, because it can be changed into a prime (13316235131) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 2224551 + ... + 2230528.

It is an arithmetic number, because the mean of its divisors is an integer number (1312021060).

Almost surely, 2^13316231131 is an apocalyptic number.

13316231131 is a deficient number, since it is larger than the sum of its proper divisors (2428021589).

13316231131 is an equidigital number, since it uses as much as digits as its factorization.

13316231131 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4455154 (or 4455147 counting only the distinct ones).

The product of its digits is 972, while the sum is 25.

Adding to 13316231131 its reverse (13113261331), we get a palindrome (26429492462).

The spelling of 13316231131 in words is "thirteen billion, three hundred sixteen million, two hundred thirty-one thousand, one hundred thirty-one".