1111555515047 has 2 divisors, whose sum is σ = 1111555515048. Its totient is φ = 1111555515046.

The previous prime is 1111555514947. The next prime is 1111555515101. The reversal of 1111555515047 is 7405155551111.

It is a strong prime.

It is an emirp because it is prime and its reverse (7405155551111) is a distict prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1111555515047 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1111555514995 and 1111555515013.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111555515547) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555777757523 + 555777757524.

It is an arithmetic number, because the mean of its divisors is an integer number (555777757524).

Almost surely, 2^{1111555515047} is an apocalyptic number.

1111555515047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111555515047 is an equidigital number, since it uses as much as digits as its factorization.

1111555515047 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 87500, while the sum is 41.

The spelling of 1111555515047 in words is "one trillion, one hundred eleven billion, five hundred fifty-five million, five hundred fifteen thousand, forty-seven".