11355043199987 has 2 divisors, whose sum is σ = 11355043199988. Its totient is φ = 11355043199986.

The previous prime is 11355043199921. The next prime is 11355043199993. The reversal of 11355043199987 is 78999134055311.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 11355043199987 - 2¹⁶ = 11355043134451 is a prime.

It is not a weakly prime, because it can be changed into another prime (11355043199917) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5677521599993 + 5677521599994.

It is an arithmetic number, because the mean of its divisors is an integer number (5677521599994).

Almost surely, 2^{11355043199987} is an apocalyptic number.

11355043199987 is a deficient number, since it is larger than the sum of its proper divisors (1).

11355043199987 is an equidigital number, since it uses as much as digits as its factorization.

11355043199987 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 36741600, while the sum is 65.

The spelling of 11355043199987 in words is "eleven trillion, three hundred fifty-five billion, forty-three million, one hundred ninety-nine thousand, nine hundred eighty-seven".