1113431111101 has 2 divisors, whose sum is σ = 1113431111102. Its totient is φ = 1113431111100.

The previous prime is 1113431111083. The next prime is 1113431111141. The reversal of 1113431111101 is 1011111343111.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 901310991876 + 212120119225 = 949374^2 + 460565^2 .

It is a cyclic number.

It is not a de Polignac number, because 1113431111101 - 2¹¹ = 1113431109053 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113431111141) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556715555550 + 556715555551.

It is an arithmetic number, because the mean of its divisors is an integer number (556715555551).

Almost surely, 2^{1113431111101} is an apocalyptic number.

It is an amenable number.

1113431111101 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113431111101 is an equidigital number, since it uses as much as digits as its factorization.

1113431111101 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 36, while the sum is 19.

Adding to 1113431111101 its reverse (1011111343111), we get a palindrome (2124542454212).

The spelling of 1113431111101 in words is "one trillion, one hundred thirteen billion, four hundred thirty-one million, one hundred eleven thousand, one hundred one".