2101231312303 has 2 divisors, whose sum is σ = 2101231312304. Its totient is φ = 2101231312302.

The previous prime is 2101231312291. The next prime is 2101231312333. The reversal of 2101231312303 is 3032131321012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101231312303 - 2³³ = 2092641377711 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (2101231312333) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050615656151 + 1050615656152.

It is an arithmetic number, because the mean of its divisors is an integer number (1050615656152).

Almost surely, 2^{2101231312303} is an apocalyptic number.

2101231312303 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101231312303 is an equidigital number, since it uses as much as digits as its factorization.

2101231312303 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 2101231312303 its reverse (3032131321012), we get a palindrome (5133362633315).

The spelling of 2101231312303 in words is "two trillion, one hundred one billion, two hundred thirty-one million, three hundred twelve thousand, three hundred three".