1080512731387 has 4 divisors (see below), whose sum is σ = 1117771791120. Its totient is φ = 1043253671656.

The previous prime is 1080512731379. The next prime is 1080512731391. The reversal of 1080512731387 is 7831372150801.

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

It is a cyclic number.

It is not a de Polignac number, because 1080512731387 - 2³ = 1080512731379 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1080512731367) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 18629529823 + ... + 18629529880.

It is an arithmetic number, because the mean of its divisors is an integer number (279442947780).

Almost surely, 2^{1080512731387} is an apocalyptic number.

1080512731387 is a deficient number, since it is larger than the sum of its proper divisors (37259059733).

1080512731387 is an equidigital number, since it uses as much as digits as its factorization.

1080512731387 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37259059732.

The product of its (nonzero) digits is 282240, while the sum is 46.

The spelling of 1080512731387 in words is "one trillion, eighty billion, five hundred twelve million, seven hundred thirty-one thousand, three hundred eighty-seven".