1000212304321 has 4 divisors (see below), whose sum is σ = 1052855057200. Its totient is φ = 947569551444.

The previous prime is 1000212304291. The next prime is 1000212304379. The reversal of 1000212304321 is 1234032120001.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 1000212304321 - 2⁷ = 1000212304193 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (19), and also a Moran number because the ratio is a prime number: 52642752859 = 1000212304321 / (1 + 0 + 0 + 0 + 2 + 1 + 2 + 3 + 0 + 4 + 3 + 2 + 1).

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1000212304921) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26321376411 + ... + 26321376448.

It is an arithmetic number, because the mean of its divisors is an integer number (263213764300).

Almost surely, 2^{1000212304321} is an apocalyptic number.

It is an amenable number.

1000212304321 is a deficient number, since it is larger than the sum of its proper divisors (52642752879).

1000212304321 is an equidigital number, since it uses as much as digits as its factorization.

1000212304321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 52642752878.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 1000212304321 its reverse (1234032120001), we get a palindrome (2234244424322).

The spelling of 1000212304321 in words is "one trillion, two hundred twelve million, three hundred four thousand, three hundred twenty-one".