2101321301899 has 2 divisors, whose sum is σ = 2101321301900. Its totient is φ = 2101321301898.

The previous prime is 2101321301887. The next prime is 2101321302013. The reversal of 2101321301899 is 9981031231012.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 2101321301899 - 2³¹ = 2099173818251 is a prime.

It is not a weakly prime, because it can be changed into another prime (2101321301809) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1050660650949 + 1050660650950.

It is an arithmetic number, because the mean of its divisors is an integer number (1050660650950).

Almost surely, 2^{2101321301899} is an apocalyptic number.

2101321301899 is a deficient number, since it is larger than the sum of its proper divisors (1).

2101321301899 is an equidigital number, since it uses as much as digits as its factorization.

2101321301899 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 40.

The spelling of 2101321301899 in words is "two trillion, one hundred one billion, three hundred twenty-one million, three hundred one thousand, eight hundred ninety-nine".