1230209319 has 16 divisors (see below), whose sum is σ = 1697771520. Its totient is φ = 791424480.

The previous prime is 1230209269. The next prime is 1230209329. The reversal of 1230209319 is 9139020321.

It is a happy number.

It is not a de Polignac number, because 1230209319 - 2¹³ = 1230201127 is a prime.

It is a super-2 number, since 2×1230209319² = 3026829937108887522, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1230209329) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 252234 + ... + 257064.

It is an arithmetic number, because the mean of its divisors is an integer number (106110720).

Almost surely, 2^1230209319 is an apocalyptic number.

1230209319 is a deficient number, since it is larger than the sum of its proper divisors (467562201).

1230209319 is a wasteful number, since it uses less digits than its factorization.

1230209319 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7790.

The product of its (nonzero) digits is 2916, while the sum is 30.

The square root of 1230209319 is about 35074.3398940023. The cubic root of 1230209319 is about 1071.5020448383.

The spelling of 1230209319 in words is "one billion, two hundred thirty million, two hundred nine thousand, three hundred nineteen".