209330520331 has 2 divisors, whose sum is σ = 209330520332. Its totient is φ = 209330520330.

The previous prime is 209330520317. The next prime is 209330520349. The reversal of 209330520331 is 133025033902.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 209330520331 - 2¹⁷ = 209330389259 is a prime.

It is a super-2 number, since 2×209330520331² (a number of 23 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 209330520293 and 209330520302.

It is not a weakly prime, because it can be changed into another prime (209330520631) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 104665260165 + 104665260166.

It is an arithmetic number, because the mean of its divisors is an integer number (104665260166).

Almost surely, 2^209330520331 is an apocalyptic number.

209330520331 is a deficient number, since it is larger than the sum of its proper divisors (1).

209330520331 is an equidigital number, since it uses as much as digits as its factorization.

209330520331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 14580, while the sum is 31.

The spelling of 209330520331 in words is "two hundred nine billion, three hundred thirty million, five hundred twenty thousand, three hundred thirty-one".