11020091129 has 4 divisors (see below), whose sum is σ = 11020701684. Its totient is φ = 11019480576.

The previous prime is 11020091111. The next prime is 11020091171. The reversal of 11020091129 is 92119002011.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 92119002011 = 5309 ⋅17351479.

It can be written as a sum of positive squares in 2 ways, for example, as 10882662400 + 137428729 = 104320^2 + 11723^2 .

It is a cyclic number.

It is not a de Polignac number, because 11020091129 - 2¹² = 11020087033 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11020091098 and 11020091107.

It is not an unprimeable number, because it can be changed into a prime (11020091179) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 277352 + ... + 314585.

It is an arithmetic number, because the mean of its divisors is an integer number (2755175421).

Almost surely, 2^11020091129 is an apocalyptic number.

It is an amenable number.

11020091129 is a deficient number, since it is larger than the sum of its proper divisors (610555).

11020091129 is an equidigital number, since it uses as much as digits as its factorization.

11020091129 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 610554.

The product of its (nonzero) digits is 324, while the sum is 26.

The spelling of 11020091129 in words is "eleven billion, twenty million, ninety-one thousand, one hundred twenty-nine".