1111055605999 has 2 divisors, whose sum is σ = 1111055606000. Its totient is φ = 1111055605998.

The previous prime is 1111055605987. The next prime is 1111055606029. The reversal of 1111055605999 is 9995065501111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111055605999 - 2⁷ = 1111055605871 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111055605939) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555527802999 + 555527803000.

It is an arithmetic number, because the mean of its divisors is an integer number (555527803000).

Almost surely, 2^{1111055605999} is an apocalyptic number.

1111055605999 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111055605999 is an equidigital number, since it uses as much as digits as its factorization.

1111055605999 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 546750, while the sum is 52.

The spelling of 1111055605999 in words is "one trillion, one hundred eleven billion, fifty-five million, six hundred five thousand, nine hundred ninety-nine".