1000323203122 has 24 divisors (see below), whose sum is σ = 1583709312636. Its totient is φ = 473808835584.

The previous prime is 1000323203119. The next prime is 1000323203123. The reversal of 1000323203122 is 2213023230001.

It can be written as a sum of positive squares in 2 ways, for example, as 891666606961 + 108656596161 = 944281^2 + 329631^2 .

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a self number, because there is not a number n which added to its sum of digits gives 1000323203122.

It is not an unprimeable number, because it can be changed into a prime (1000323203123) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 16570818 + ... + 16631074.

Almost surely, 2^{1000323203122} is an apocalyptic number.

1000323203122 is a deficient number, since it is larger than the sum of its proper divisors (583386109514).

1000323203122 is a wasteful number, since it uses less digits than its factorization.

1000323203122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 83290 (or 83271 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 1000323203122 its reverse (2213023230001), we get a palindrome (3213346433123).

The spelling of 1000323203122 in words is "one trillion, three hundred twenty-three million, two hundred three thousand, one hundred twenty-two".