112102009 has 2 divisors, whose sum is σ = 112102010. Its totient is φ = 112102008.

The previous prime is 112101991. The next prime is 112102013. The reversal of 112102009 is 900201211.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 109935225 + 2166784 = 10485^2 + 1472^2 .

It is a cyclic number.

It is not a de Polignac number, because 112102009 - 2¹⁹ = 111577721 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 112101983 and 112102001.

It is not a weakly prime, because it can be changed into another prime (112102019) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 56051004 + 56051005.

It is an arithmetic number, because the mean of its divisors is an integer number (56051005).

Almost surely, 2^112102009 is an apocalyptic number.

It is an amenable number.

112102009 is a deficient number, since it is larger than the sum of its proper divisors (1).

112102009 is an equidigital number, since it uses as much as digits as its factorization.

112102009 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 16.

The square root of 112102009 is about 10587.8236196114. The cubic root of 112102009 is about 482.1747514056.

The spelling of 112102009 in words is "one hundred twelve million, one hundred two thousand, nine".