1287113115195 has 24 divisors (see below), whose sum is σ = 2245969206000. Its totient is φ = 681853208256.

The previous prime is 1287113115161. The next prime is 1287113115209. The reversal of 1287113115195 is 5915113117821.

It is a happy number.

1287113115195 is a `hidden beast` number, since 1 + 2 + 8 + 7 + 113 + 11 + 519 + 5 = 666.

It is not a de Polignac number, because 1287113115195 - 2⁶ = 1287113115131 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (45).

It is a self number, because there is not a number n which added to its sum of digits gives 1287113115195.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 95974885 + ... + 95988294.

It is an arithmetic number, because the mean of its divisors is an integer number (93582050250).

Almost surely, 2^{1287113115195} is an apocalyptic number.

1287113115195 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1287113115195 is a deficient number, since it is larger than the sum of its proper divisors (958856090805).

1287113115195 is a wasteful number, since it uses less digits than its factorization.

1287113115195 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 191963339 (or 191963336 counting only the distinct ones).

The product of its digits is 75600, while the sum is 45.

The spelling of 1287113115195 in words is "one trillion, two hundred eighty-seven billion, one hundred thirteen million, one hundred fifteen thousand, one hundred ninety-five".