113811611 has 2 divisors, whose sum is σ = 113811612. Its totient is φ = 113811610.

The previous prime is 113811589. The next prime is 113811619. The reversal of 113811611 is 116118311.

It is a strong prime.

It is an emirp because it is prime and its reverse (116118311) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 113811611 - 2¹⁸ = 113549467 is a prime.

It is not a weakly prime, because it can be changed into another prime (113811619) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56905805 + 56905806.

It is an arithmetic number, because the mean of its divisors is an integer number (56905806).

Almost surely, 2^113811611 is an apocalyptic number.

113811611 is a deficient number, since it is larger than the sum of its proper divisors (1).

113811611 is an equidigital number, since it uses as much as digits as its factorization.

113811611 is an evil number, because the sum of its binary digits is even.

The product of its digits is 144, while the sum is 23.

The square root of 113811611 is about 10668.2524810767. The cubic root of 113811611 is about 484.6135171656.

Adding to 113811611 its reverse (116118311), we get a palindrome (229929922).

The spelling of 113811611 in words is "one hundred thirteen million, eight hundred eleven thousand, six hundred eleven".