11199890129 has 2 divisors, whose sum is σ = 11199890130. Its totient is φ = 11199890128.

The previous prime is 11199890059. The next prime is 11199890171. The reversal of 11199890129 is 92109899111.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11061780625 + 138109504 = 105175^2 + 11752^2 .

It is a cyclic number.

It is not a de Polignac number, because 11199890129 - 2¹⁶ = 11199824593 is a prime.

It is not a weakly prime, because it can be changed into another prime (11199890629) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 5599945064 + 5599945065.

It is an arithmetic number, because the mean of its divisors is an integer number (5599945065).

Almost surely, 2^11199890129 is an apocalyptic number.

It is an amenable number.

11199890129 is a deficient number, since it is larger than the sum of its proper divisors (1).

11199890129 is an equidigital number, since it uses as much as digits as its factorization.

11199890129 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 104976, while the sum is 50.

The spelling of 11199890129 in words is "eleven billion, one hundred ninety-nine million, eight hundred ninety thousand, one hundred twenty-nine".