103111210315021 has 2 divisors, whose sum is σ = 103111210315022. Its totient is φ = 103111210315020.

The previous prime is 103111210314979. The next prime is 103111210315039. The reversal of 103111210315021 is 120513012111301.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 60693526266025 + 42417684048996 = 7790605^2 + 6512886^2 .

It is a cyclic number.

It is not a de Polignac number, because 103111210315021 - 2¹¹ = 103111210312973 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 103111210314983 and 103111210315001.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (103111210315721) 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 as a sum of consecutive naturals, namely, 51555605157510 + 51555605157511.

It is an arithmetic number, because the mean of its divisors is an integer number (51555605157511).

Almost surely, 2^{103111210315021} is an apocalyptic number.

It is an amenable number.

103111210315021 is a deficient number, since it is larger than the sum of its proper divisors (1).

103111210315021 is an equidigital number, since it uses as much as digits as its factorization.

103111210315021 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 180, while the sum is 22.

Adding to 103111210315021 its reverse (120513012111301), we get a palindrome (223624222426322).

The spelling of 103111210315021 in words is "one hundred three trillion, one hundred eleven billion, two hundred ten million, three hundred fifteen thousand, twenty-one".