11949039901 has 2 divisors, whose sum is σ = 11949039902. Its totient is φ = 11949039900.

The previous prime is 11949039887. The next prime is 11949039913. The reversal of 11949039901 is 10993094911.

11949039901 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10738347876 + 1210692025 = 103626^2 + 34795^2 .

It is a cyclic number.

It is not a de Polignac number, because 11949039901 - 2¹⁹ = 11948515613 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (11949039601) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5974519950 + 5974519951.

It is an arithmetic number, because the mean of its divisors is an integer number (5974519951).

Almost surely, 2^11949039901 is an apocalyptic number.

It is an amenable number.

11949039901 is a deficient number, since it is larger than the sum of its proper divisors (1).

11949039901 is an equidigital number, since it uses as much as digits as its factorization.

11949039901 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 78732, while the sum is 46.

The spelling of 11949039901 in words is "eleven billion, nine hundred forty-nine million, thirty-nine thousand, nine hundred one".