1310905808387 has 12 divisors (see below), whose sum is σ = 1533356291376. Its totient is φ = 1117425622320.

The previous prime is 1310905808383. The next prime is 1310905808417. The reversal of 1310905808387 is 7838085090131.

It is a happy number.

It is not a de Polignac number, because 1310905808387 - 2² = 1310905808383 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1310905808383) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 73894943 + ... + 73912680.

It is an arithmetic number, because the mean of its divisors is an integer number (127779690948).

Almost surely, 2^{1310905808387} is an apocalyptic number.

1310905808387 is a deficient number, since it is larger than the sum of its proper divisors (222450482989).

1310905808387 is a wasteful number, since it uses less digits than its factorization.

1310905808387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 147807818 (or 147807811 counting only the distinct ones).

The product of its (nonzero) digits is 1451520, while the sum is 53.

The spelling of 1310905808387 in words is "one trillion, three hundred ten billion, nine hundred five million, eight hundred eight thousand, three hundred eighty-seven".