1311207097587 has 16 divisors (see below), whose sum is σ = 1840635006720. Its totient is φ = 827975844000.

The previous prime is 1311207097583. The next prime is 1311207097633. The reversal of 1311207097587 is 7857907021131.

It is not a de Polignac number, because 1311207097587 - 2² = 1311207097583 is a prime.

It is not an unprimeable number, because it can be changed into a prime (1311207097583) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 1844464 + ... + 2454477.

It is an arithmetic number, because the mean of its divisors is an integer number (115039687920).

Almost surely, 2^{1311207097587} is an apocalyptic number.

1311207097587 is a deficient number, since it is larger than the sum of its proper divisors (529427909133).

1311207097587 is a wasteful number, since it uses less digits than its factorization.

1311207097587 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4304314.

The product of its (nonzero) digits is 740880, while the sum is 51.

The spelling of 1311207097587 in words is "one trillion, three hundred eleven billion, two hundred seven million, ninety-seven thousand, five hundred eighty-seven".