2121310100303 has 2 divisors, whose sum is σ = 2121310100304. Its totient is φ = 2121310100302.

The previous prime is 2121310100297. The next prime is 2121310100369. The reversal of 2121310100303 is 3030010131212.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2121310100303 - 2¹⁸ = 2121309838159 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2121310160303) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1060655050151 + 1060655050152.

It is an arithmetic number, because the mean of its divisors is an integer number (1060655050152).

Almost surely, 2^{2121310100303} is an apocalyptic number.

2121310100303 is a deficient number, since it is larger than the sum of its proper divisors (1).

2121310100303 is an equidigital number, since it uses as much as digits as its factorization.

2121310100303 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 2121310100303 its reverse (3030010131212), we get a palindrome (5151320231515).

The spelling of 2121310100303 in words is "two trillion, one hundred twenty-one billion, three hundred ten million, one hundred thousand, three hundred three".