11010001981049 has 2 divisors, whose sum is σ = 11010001981050. Its totient is φ = 11010001981048.

The previous prime is 11010001981009. The next prime is 11010001981093. The reversal of 11010001981049 is 94018910001011.

11010001981049 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 10960946375824 + 49055605225 = 3310732^2 + 221485^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11010001981049 is a prime.

It is not a weakly prime, because it can be changed into another prime (11010001981009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5505000990524 + 5505000990525.

It is an arithmetic number, because the mean of its divisors is an integer number (5505000990525).

Almost surely, 2^{11010001981049} is an apocalyptic number.

It is an amenable number.

11010001981049 is a deficient number, since it is larger than the sum of its proper divisors (1).

11010001981049 is an equidigital number, since it uses as much as digits as its factorization.

11010001981049 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2592, while the sum is 35.

The spelling of 11010001981049 in words is "eleven trillion, ten billion, one million, nine hundred eighty-one thousand, forty-nine".