1311354536 has 16 divisors (see below), whose sum is σ = 2462400000. Its totient is φ = 654714544.

The previous prime is 1311354533. The next prime is 1311354563. The reversal of 1311354536 is 6354531131.

It is not an unprimeable number, because it can be changed into a prime (1311354533) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 114536 + ... + 125463.

It is an arithmetic number, because the mean of its divisors is an integer number (153900000).

Almost surely, 2^1311354536 is an apocalyptic number.

It is an amenable number.

1311354536 is a deficient number, since it is larger than the sum of its proper divisors (1151045464).

1311354536 is a wasteful number, since it uses less digits than its factorization.

1311354536 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 240688 (or 240684 counting only the distinct ones).

The product of its digits is 16200, while the sum is 32.

The square root of 1311354536 is about 36212.6295096062. The cubic root of 1311354536 is about 1094.5611791560.

Adding to 1311354536 its reverse (6354531131), we get a palindrome (7665885667).

The spelling of 1311354536 in words is "one billion, three hundred eleven million, three hundred fifty-four thousand, five hundred thirty-six".