1312103560 has 16 divisors (see below), whose sum is σ = 2952233100. Its totient is φ = 524841408.

The previous prime is 1312103557. The next prime is 1312103587. The reversal of 1312103560 is 653012131.

It is a happy number.

It can be written as a sum of positive squares in 2 ways, for example, as 1254434724 + 57668836 = 35418^2 + 7594^2 .

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 16401255 + ... + 16401334.

Almost surely, 2^1312103560 is an apocalyptic number.

1312103560 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312103560 is an abundant number, since it is smaller than the sum of its proper divisors (1640129540).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1312103560 is a wasteful number, since it uses less digits than its factorization.

1312103560 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32802600 (or 32802596 counting only the distinct ones).

The product of its (nonzero) digits is 540, while the sum is 22.

The square root of 1312103560 is about 36222.9700604465. The cubic root of 1312103560 is about 1094.7695378986.

Adding to 1312103560 its reverse (653012131), we get a palindrome (1965115691).

The spelling of 1312103560 in words is "one billion, three hundred twelve million, one hundred three thousand, five hundred sixty".