123200032309 has 2 divisors, whose sum is σ = 123200032310. Its totient is φ = 123200032308.

The previous prime is 123200032271. The next prime is 123200032327. The reversal of 123200032309 is 903230002321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 88255338084 + 34944694225 = 297078^2 + 186935^2 .

It is a cyclic number.

It is not a de Polignac number, because 123200032309 - 2¹⁵ = 123199999541 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123200032409) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61600016154 + 61600016155.

It is an arithmetic number, because the mean of its divisors is an integer number (61600016155).

Almost surely, 2^123200032309 is an apocalyptic number.

It is an amenable number.

123200032309 is a deficient number, since it is larger than the sum of its proper divisors (1).

123200032309 is an equidigital number, since it uses as much as digits as its factorization.

123200032309 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1944, while the sum is 25.

The spelling of 123200032309 in words is "one hundred twenty-three billion, two hundred million, thirty-two thousand, three hundred nine".