1312102013 has 4 divisors (see below), whose sum is σ = 1357346940. Its totient is φ = 1266857088.

The previous prime is 1312101983. The next prime is 1312102027. The reversal of 1312102013 is 3102012131.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 644499769 + 667602244 = 25387^2 + 25838^2 .

It is a cyclic number.

It is not a de Polignac number, because 1312102013 - 2¹⁰ = 1312100989 is a prime.

It is a super-2 number, since 2×1312102013² = 3443223385037304338, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312102093) 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 3 ways as a sum of consecutive naturals, for example, 22622420 + ... + 22622477.

It is an arithmetic number, because the mean of its divisors is an integer number (339336735).

Almost surely, 2^1312102013 is an apocalyptic number.

It is an amenable number.

1312102013 is a deficient number, since it is larger than the sum of its proper divisors (45244927).

1312102013 is an equidigital number, since it uses as much as digits as its factorization.

1312102013 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45244926.

The product of its (nonzero) digits is 36, while the sum is 14.

The square root of 1312102013 is about 36222.9487065865. The cubic root of 1312102013 is about 1094.7691076457.

Adding to 1312102013 its reverse (3102012131), we get a palindrome (4414114144).

The spelling of 1312102013 in words is "one billion, three hundred twelve million, one hundred two thousand, thirteen".