1311313012 has 24 divisors (see below), whose sum is σ = 2342594016. Its totient is φ = 642114528.

The previous prime is 1311313001. The next prime is 1311313033. The reversal of 1311313012 is 2103131131.

It is a congruent number.

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 7 ways as a sum of consecutive naturals, for example, 32223 + ... + 60505.

It is an arithmetic number, because the mean of its divisors is an integer number (97608084).

Almost surely, 2^1311313012 is an apocalyptic number.

It is an amenable number.

1311313012 is a deficient number, since it is larger than the sum of its proper divisors (1031281004).

1311313012 is a wasteful number, since it uses less digits than its factorization.

1311313012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28527 (or 28525 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 16.

The square root of 1311313012 is about 36212.0561691821. The cubic root of 1311313012 is about 1094.5496259523.

Adding to 1311313012 its reverse (2103131131), we get a palindrome (3414444143).

The spelling of 1311313012 in words is "one billion, three hundred eleven million, three hundred thirteen thousand, twelve".