1315111712 has 12 divisors (see below), whose sum is σ = 2589126246. Its totient is φ = 657555840.

The previous prime is 1315111673. The next prime is 1315111769. The reversal of 1315111712 is 2171115131.

It can be written as a sum of positive squares in only one way, i.e., 1279063696 + 36048016 = 35764^2 + 6004^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 20548589 + ... + 20548652.

Almost surely, 2^1315111712 is an apocalyptic number.

It is an amenable number.

1315111712 is a deficient number, since it is larger than the sum of its proper divisors (1274014534).

1315111712 is an equidigital number, since it uses as much as digits as its factorization.

1315111712 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 41097251 (or 41097243 counting only the distinct ones).

The product of its digits is 210, while the sum is 23.

The square root of 1315111712 is about 36264.4690020411. The cubic root of 1315111712 is about 1095.6055287375.

Adding to 1315111712 its reverse (2171115131), we get a palindrome (3486226843).

The spelling of 1315111712 in words is "one billion, three hundred fifteen million, one hundred eleven thousand, seven hundred twelve".