1030300022021 has 4 divisors (see below), whose sum is σ = 1049739645132. Its totient is φ = 1010860398912.

The previous prime is 1030300021987. The next prime is 1030300022027. The reversal of 1030300022021 is 1202200030301.

It is a happy number.

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 666794730625 + 363505291396 = 816575^2 + 602914^2 .

It is a cyclic number.

It is not a de Polignac number, because 1030300022021 - 2⁶ = 1030300021957 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1030300021987 and 1030300022005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1030300022027) 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, 9719811476 + ... + 9719811581.

It is an arithmetic number, because the mean of its divisors is an integer number (262434911283).

Almost surely, 2^{1030300022021} is an apocalyptic number.

It is an amenable number.

1030300022021 is a deficient number, since it is larger than the sum of its proper divisors (19439623111).

1030300022021 is an equidigital number, since it uses as much as digits as its factorization.

1030300022021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19439623110.

The product of its (nonzero) digits is 72, while the sum is 14.

Adding to 1030300022021 its reverse (1202200030301), we get a palindrome (2232500052322).

The spelling of 1030300022021 in words is "one trillion, thirty billion, three hundred million, twenty-two thousand, twenty-one".