1315131105 has 8 divisors (see below), whose sum is σ = 2104209792. Its totient is φ = 701403248.

The previous prime is 1315131061. The next prime is 1315131109. The reversal of 1315131105 is 5011315131.

1315131105 is digitally balanced in base 4, because in such base it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1315131105 - 2¹⁷ = 1315000033 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1315131109) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 43837689 + ... + 43837718.

It is an arithmetic number, because the mean of its divisors is an integer number (263026224).

Almost surely, 2^1315131105 is an apocalyptic number.

1315131105 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1315131105 is a deficient number, since it is larger than the sum of its proper divisors (789078687).

1315131105 is an equidigital number, since it uses as much as digits as its factorization.

1315131105 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87675415.

The product of its (nonzero) digits is 225, while the sum is 21.

The square root of 1315131105 is about 36264.7363839860. The cubic root of 1315131105 is about 1095.6109140781.

Adding to 1315131105 its reverse (5011315131), we get a palindrome (6326446236).

The spelling of 1315131105 in words is "one billion, three hundred fifteen million, one hundred thirty-one thousand, one hundred five".