109411038521 has 2 divisors, whose sum is σ = 109411038522. Its totient is φ = 109411038520.

The previous prime is 109411038491. The next prime is 109411038533. The reversal of 109411038521 is 125830114901.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 107279831296 + 2131207225 = 327536^2 + 46165^2 .

It is a cyclic number.

It is not a de Polignac number, because 109411038521 - 2¹⁴ = 109411022137 is a prime.

It is a Sophie Germain prime.

It is a Curzon number.

It is not a weakly prime, because it can be changed into another prime (109411034521) 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, 54705519260 + 54705519261.

It is an arithmetic number, because the mean of its divisors is an integer number (54705519261).

Almost surely, 2^109411038521 is an apocalyptic number.

It is an amenable number.

109411038521 is a deficient number, since it is larger than the sum of its proper divisors (1).

109411038521 is an equidigital number, since it uses as much as digits as its factorization.

109411038521 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 8640, while the sum is 35.

The spelling of 109411038521 in words is "one hundred nine billion, four hundred eleven million, thirty-eight thousand, five hundred twenty-one".