100011001009949 has 2 divisors, whose sum is σ = 100011001009950. Its totient is φ = 100011001009948.

The previous prime is 100011001009943. The next prime is 100011001010029. The reversal of 100011001009949 is 949900100110001.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 95646737407225 + 4364263602724 = 9779915^2 + 2089082^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-100011001009949 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (100011001009943) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 50005500504974 + 50005500504975.

It is an arithmetic number, because the mean of its divisors is an integer number (50005500504975).

Almost surely, 2^{100011001009949} is an apocalyptic number.

It is an amenable number.

100011001009949 is a deficient number, since it is larger than the sum of its proper divisors (1).

100011001009949 is an equidigital number, since it uses as much as digits as its factorization.

100011001009949 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 35.

The spelling of 100011001009949 in words is "one hundred trillion, eleven billion, one million, nine thousand, nine hundred forty-nine".