1300000312 has 16 divisors (see below), whose sum is σ = 2625000840. Its totient is φ = 600000096.

The previous prime is 1300000309. The next prime is 1300000333. The reversal of 1300000312 is 2130000031.

It is a super-2 number, since 2×1300000312² = 3380001622400194688, which contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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, 6249898 + ... + 6250105.

Almost surely, 2^1300000312 is an apocalyptic number.

It is an amenable number.

1300000312 is an abundant number, since it is smaller than the sum of its proper divisors (1325000528).

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

1300000312 is a wasteful number, since it uses less digits than its factorization.

1300000312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 12500022 (or 12500018 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 10.

The square root of 1300000312 is about 36055.5170813012. The cubic root of 1300000312 is about 1091.3929703725.

Adding to 1300000312 its reverse (2130000031), we get a palindrome (3430000343).

It can be divided in two parts, 130000031 and 2, that multiplied together give a palindrome (260000062).

The spelling of 1300000312 in words is "one billion, three hundred million, three hundred twelve", and thus it is an aban number.