1011101100043 has 2 divisors, whose sum is σ = 1011101100044. Its totient is φ = 1011101100042.

The previous prime is 1011101100007. The next prime is 1011101100077. The reversal of 1011101100043 is 3400011011101.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1011101100043 - 2²¹ = 1011099002891 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1011101099996 and 1011101100032.

It is not a weakly prime, because it can be changed into another prime (1011101100743) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 505550550021 + 505550550022.

It is an arithmetic number, because the mean of its divisors is an integer number (505550550022).

Almost surely, 2^{1011101100043} is an apocalyptic number.

1011101100043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1011101100043 is an equidigital number, since it uses as much as digits as its factorization.

1011101100043 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 12, while the sum is 13.

Adding to 1011101100043 its reverse (3400011011101), we get a palindrome (4411112111144).

The spelling of 1011101100043 in words is "one trillion, eleven billion, one hundred one million, one hundred thousand, forty-three".