1030103212321 has 4 divisors (see below), whose sum is σ = 1030177457172. Its totient is φ = 1030028967472.

The previous prime is 1030103212289. The next prime is 1030103212331. The reversal of 1030103212321 is 1232123010301.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 38706627600 + 991396584721 = 196740^2 + 995689^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030103212321 - 2⁵ = 1030103212289 is a prime.

It is a super-2 number, since 2×1030103212321² (a number of 25 digits) contains 22 as substring.

It is an alternating number because its digits alternate between odd and even.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (1030103212331) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 37101610 + ... + 37129363.

It is an arithmetic number, because the mean of its divisors is an integer number (257544364293).

Almost surely, 2^{1030103212321} is an apocalyptic number.

It is an amenable number.

1030103212321 is a deficient number, since it is larger than the sum of its proper divisors (74244851).

1030103212321 is an equidigital number, since it uses as much as digits as its factorization.

1030103212321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 74244850.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1030103212321 its reverse (1232123010301), we get a palindrome (2262226222622).

The spelling of 1030103212321 in words is "one trillion, thirty billion, one hundred three million, two hundred twelve thousand, three hundred twenty-one".