2101312603003 has 2 divisors, whose sum is σ = 2101312603004. Its totient is φ = 2101312603002.

The previous prime is 2101312602971. The next prime is 2101312603031. The reversal of 2101312603003 is 3003062131012.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 2101312603003 - 2⁵ = 2101312602971 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101312600003) 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, 1050656301501 + 1050656301502.

It is an arithmetic number, because the mean of its divisors is an integer number (1050656301502).

Almost surely, 2^{2101312603003} is an apocalyptic number.

2101312603003 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101312603003 is an equidigital number, since it uses as much as digits as its factorization.

2101312603003 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 648, while the sum is 22.

Adding to 2101312603003 its reverse (3003062131012), we get a palindrome (5104374734015).

The spelling of 2101312603003 in words is "two trillion, one hundred one billion, three hundred twelve million, six hundred three thousand, three".