1131885337787 has 2 divisors, whose sum is σ = 1131885337788. Its totient is φ = 1131885337786.

The previous prime is 1131885337777. The next prime is 1131885337853. The reversal of 1131885337787 is 7877335881311.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1131885337787 - 2²² = 1131881143483 is a prime.

It is not a weakly prime, because it can be changed into another prime (1131885337777) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 565942668893 + 565942668894.

It is an arithmetic number, because the mean of its divisors is an integer number (565942668894).

Almost surely, 2^{1131885337787} is an apocalyptic number.

1131885337787 is a deficient number, since it is larger than the sum of its proper divisors (1).

1131885337787 is an equidigital number, since it uses as much as digits as its factorization.

1131885337787 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 23708160, while the sum is 62.

The spelling of 1131885337787 in words is "one trillion, one hundred thirty-one billion, eight hundred eighty-five million, three hundred thirty-seven thousand, seven hundred eighty-seven".