1030212100321 has 8 divisors (see below), whose sum is σ = 1049685514344. Its totient is φ = 1010739999360.

The previous prime is 1030212100241. The next prime is 1030212100343. The reversal of 1030212100321 is 1230012120301.

It can be written as a sum of positive squares in 4 ways, for example, as 8018307025 + 1022193793296 = 89545^2 + 1011036^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 1030212100321 - 2¹⁵ = 1030212067553 is a prime.

It is a super-2 number, since 2×1030212100321² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030212100295 and 1030212100304.

It is not an unprimeable number, because it can be changed into a prime (1030212110321) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1334595 + ... + 1959991.

It is an arithmetic number, because the mean of its divisors is an integer number (131210689293).

Almost surely, 2^{1030212100321} is an apocalyptic number.

It is an amenable number.

1030212100321 is a deficient number, since it is larger than the sum of its proper divisors (19473414023).

1030212100321 is an equidigital number, since it uses as much as digits as its factorization.

1030212100321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 656531.

The product of its (nonzero) digits is 72, while the sum is 16.

Adding to 1030212100321 its reverse (1230012120301), we get a palindrome (2260224220622).

The spelling of 1030212100321 in words is "one trillion, thirty billion, two hundred twelve million, one hundred thousand, three hundred twenty-one".