1101111111043 has 2 divisors, whose sum is σ = 1101111111044. Its totient is φ = 1101111111042.

The previous prime is 1101111110989. The next prime is 1101111111071. The reversal of 1101111111043 is 3401111111011.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1101111111043 - 2¹⁷ = 1101110979971 is a prime.

It is not a weakly prime, because it can be changed into another prime (1101111141043) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 550555555521 + 550555555522.

It is an arithmetic number, because the mean of its divisors is an integer number (550555555522).

Almost surely, 2^{1101111111043} is an apocalyptic number.

1101111111043 is a deficient number, since it is larger than the sum of its proper divisors (1).

1101111111043 is an equidigital number, since it uses as much as digits as its factorization.

1101111111043 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 12, while the sum is 16.

Adding to 1101111111043 its reverse (3401111111011), we get a palindrome (4502222222054).

The spelling of 1101111111043 in words is "one trillion, one hundred one billion, one hundred eleven million, one hundred eleven thousand, forty-three".