2102001000049 has 2 divisors, whose sum is σ = 2102001000050. Its totient is φ = 2102001000048.

The previous prime is 2102001000037. The next prime is 2102001000053. The reversal of 2102001000049 is 9400001002012.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 1438416435600 + 663584564449 = 1199340^2 + 814607^2 .

It is a cyclic number.

It is not a de Polignac number, because 2102001000049 - 2¹¹ = 2102000998001 is a prime.

It is not a weakly prime, because it can be changed into another prime (2102001000089) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 1051000500024 + 1051000500025.

It is an arithmetic number, because the mean of its divisors is an integer number (1051000500025).

Almost surely, 2^{2102001000049} is an apocalyptic number.

It is an amenable number.

2102001000049 is a deficient number, since it is larger than the sum of its proper divisors (1).

2102001000049 is an equidigital number, since it uses as much as digits as its factorization.

2102001000049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 144, while the sum is 19.

The spelling of 2102001000049 in words is "two trillion, one hundred two billion, one million, forty-nine", and thus it is an aban number.