1113761111 has 2 divisors, whose sum is σ = 1113761112. Its totient is φ = 1113761110.

The previous prime is 1113761107. The next prime is 1113761123. The reversal of 1113761111 is 1111673111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1113761111 - 2² = 1113761107 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1113761101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 556880555 + 556880556.

It is an arithmetic number, because the mean of its divisors is an integer number (556880556).

Almost surely, 2^1113761111 is an apocalyptic number.

1113761111 is a deficient number, since it is larger than the sum of its proper divisors (1).

1113761111 is an equidigital number, since it uses as much as digits as its factorization.

1113761111 is an evil number, because the sum of its binary digits is even.

The product of its digits is 126, while the sum is 23.

The square root of 1113761111 is about 33373.0596589525. The cubic root of 1113761111 is about 1036.5669314807.

The spelling of 1113761111 in words is "one billion, one hundred thirteen million, seven hundred sixty-one thousand, one hundred eleven".