103313130020021 has 2 divisors, whose sum is σ = 103313130020022. Its totient is φ = 103313130020020.

The previous prime is 103313130019973. The next prime is 103313130020027. The reversal of 103313130020021 is 120020031313301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 87274626883921 + 16038503136100 = 9342089^2 + 4004810^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103313130020021 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103313130019975 and 103313130020002.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103313130020027) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 51656565010010 + 51656565010011.

It is an arithmetic number, because the mean of its divisors is an integer number (51656565010011).

Almost surely, 2^{103313130020021} is an apocalyptic number.

It is an amenable number.

103313130020021 is a deficient number, since it is larger than the sum of its proper divisors (1).

103313130020021 is an equidigital number, since it uses as much as digits as its factorization.

103313130020021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 103313130020021 its reverse (120020031313301), we get a palindrome (223333161333322).

The spelling of 103313130020021 in words is "one hundred three trillion, three hundred thirteen billion, one hundred thirty million, twenty thousand, twenty-one".