1011111201047 has 2 divisors, whose sum is σ = 1011111201048. Its totient is φ = 1011111201046.

The previous prime is 1011111200971. The next prime is 1011111201071. The reversal of 1011111201047 is 7401021111101.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011111201047 - 2³² = 1006816233751 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1011111201647) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505555600523 + 505555600524.

It is an arithmetic number, because the mean of its divisors is an integer number (505555600524).

Almost surely, 2^{1011111201047} is an apocalyptic number.

1011111201047 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011111201047 is an equidigital number, since it uses as much as digits as its factorization.

1011111201047 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 56, while the sum is 20.

Adding to 1011111201047 its reverse (7401021111101), we get a palindrome (8412132312148).

The spelling of 1011111201047 in words is "one trillion, eleven billion, one hundred eleven million, two hundred one thousand, forty-seven".