113420009 has 2 divisors, whose sum is σ = 113420010. Its totient is φ = 113420008.

The previous prime is 113420003. The next prime is 113420023. The reversal of 113420009 is 900024311.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 112296409 + 1123600 = 10597^2 + 1060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-113420009 is a prime.

It is not a weakly prime, because it can be changed into another prime (113420003) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56710004 + 56710005.

It is an arithmetic number, because the mean of its divisors is an integer number (56710005).

Almost surely, 2^113420009 is an apocalyptic number.

It is an amenable number.

113420009 is a deficient number, since it is larger than the sum of its proper divisors (1).

113420009 is an equidigital number, since it uses as much as digits as its factorization.

113420009 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 216, while the sum is 20.

The square root of 113420009 is about 10649.8830510011. The cubic root of 113420009 is about 484.0570604698.

The spelling of 113420009 in words is "one hundred thirteen million, four hundred twenty thousand, nine".