1312730806372 has 12 divisors (see below), whose sum is σ = 2350704002416. Its totient is φ = 641101091400.

The previous prime is 1312730806241. The next prime is 1312730806381. The reversal of 1312730806372 is 2736080372131.

It is a Harshad number since it is a multiple of its sum of digits (43).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 3816077754 + ... + 3816078097.

Almost surely, 2^{1312730806372} is an apocalyptic number.

It is an amenable number.

1312730806372 is a deficient number, since it is larger than the sum of its proper divisors (1037973196044).

1312730806372 is a wasteful number, since it uses less digits than its factorization.

1312730806372 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7632155898 (or 7632155896 counting only the distinct ones).

The product of its (nonzero) digits is 254016, while the sum is 43.

The spelling of 1312730806372 in words is "one trillion, three hundred twelve billion, seven hundred thirty million, eight hundred six thousand, three hundred seventy-two".