1312124013 has 12 divisors (see below), whose sum is σ = 1907843808. Its totient is φ = 868955400.

The previous prime is 1312124003. The next prime is 1312124017. The reversal of 1312124013 is 3104212131.

It is not a de Polignac number, because 1312124013 - 2²⁸ = 1043688557 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312124017) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 481395 + ... + 484112.

It is an arithmetic number, because the mean of its divisors is an integer number (158986984).

Almost surely, 2^1312124013 is an apocalyptic number.

It is an amenable number.

1312124013 is a deficient number, since it is larger than the sum of its proper divisors (595719795).

1312124013 is a wasteful number, since it uses less digits than its factorization.

1312124013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 965664 (or 965661 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 18.

The square root of 1312124013 is about 36223.2523802046. The cubic root of 1312124013 is about 1094.7752262721.

Adding to 1312124013 its reverse (3104212131), we get a palindrome (4416336144).

The spelling of 1312124013 in words is "one billion, three hundred twelve million, one hundred twenty-four thousand, thirteen".