113870111 has 2 divisors, whose sum is σ = 113870112. Its totient is φ = 113870110.

The previous prime is 113870101. The next prime is 113870147. The reversal of 113870111 is 111078311.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113870111 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (113870101) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56935055 + 56935056.

It is an arithmetic number, because the mean of its divisors is an integer number (56935056).

Almost surely, 2^113870111 is an apocalyptic number.

113870111 is a deficient number, since it is larger than the sum of its proper divisors (1).

113870111 is an equidigital number, since it uses as much as digits as its factorization.

113870111 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 168, while the sum is 23.

The square root of 113870111 is about 10670.9939087228. The cubic root of 113870111 is about 484.6965345735.

The spelling of 113870111 in words is "one hundred thirteen million, eight hundred seventy thousand, one hundred eleven".