1030300111021 has 2 divisors, whose sum is σ = 1030300111022. Its totient is φ = 1030300111020.

The previous prime is 1030300110991. The next prime is 1030300111063. The reversal of 1030300111021 is 1201110030301.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 702435076996 + 327865034025 = 838114^2 + 572595^2 .

It is an emirp because it is prime and its reverse (1201110030301) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1030300111021 - 2¹⁷ = 1030299979949 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 1030300110992 and 1030300111010.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1030300111091) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 515150055510 + 515150055511.

It is an arithmetic number, because the mean of its divisors is an integer number (515150055511).

Almost surely, 2^{1030300111021} is an apocalyptic number.

It is an amenable number.

1030300111021 is a deficient number, since it is larger than the sum of its proper divisors (1).

1030300111021 is an equidigital number, since it uses as much as digits as its factorization.

1030300111021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18, while the sum is 13.

Adding to 1030300111021 its reverse (1201110030301), we get a palindrome (2231410141322).

The spelling of 1030300111021 in words is "one trillion, thirty billion, three hundred million, one hundred eleven thousand, twenty-one".