1312010320 has 40 divisors (see below), whose sum is σ = 3058804224. Its totient is φ = 523362432.

The previous prime is 1312010267. The next prime is 1312010327. The reversal of 1312010320 is 230102131.

It is a tau number, because it is divible by the number of its divisors (40).

It is a self number, because there is not a number n which added to its sum of digits gives 1312010320.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1312010327) by changing a digit.

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, 7017 + ... + 51703.

Almost surely, 2^1312010320 is an apocalyptic number.

1312010320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1312010320 is an abundant number, since it is smaller than the sum of its proper divisors (1746793904).

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

1312010320 is a wasteful number, since it uses less digits than its factorization.

1312010320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 45067 (or 45061 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

The square root of 1312010320 is about 36221.6830089382. The cubic root of 1312010320 is about 1094.7436053090.

Adding to 1312010320 its reverse (230102131), we get a palindrome (1542112451).

The spelling of 1312010320 in words is "one billion, three hundred twelve million, ten thousand, three hundred twenty".