1313181325 has 12 divisors (see below), whose sum is σ = 1630208160. Its totient is φ = 1049342960.

The previous prime is 1313181323. The next prime is 1313181329. The reversal of 1313181325 is 5231813131.

It is not a de Polignac number, because 1313181325 - 2¹ = 1313181323 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1313181293 and 1313181302.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1313181323) 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, 7435 + ... + 51784.

It is an arithmetic number, because the mean of its divisors is an integer number (135850680).

Almost surely, 2^1313181325 is an apocalyptic number.

It is an amenable number.

1313181325 is a deficient number, since it is larger than the sum of its proper divisors (317026835).

1313181325 is an equidigital number, since it uses as much as digits as its factorization.

1313181325 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 60116 (or 60111 counting only the distinct ones).

The product of its digits is 2160, while the sum is 28.

The square root of 1313181325 is about 36237.8438238259. The cubic root of 1313181325 is about 1095.0692046362.

Adding to 1313181325 its reverse (5231813131), we get a palindrome (6544994456).

The spelling of 1313181325 in words is "one billion, three hundred thirteen million, one hundred eighty-one thousand, three hundred twenty-five".