11090820261 has 8 divisors (see below), whose sum is σ = 14788258560. Its totient is φ = 7393631072.

The previous prime is 11090820259. The next prime is 11090820283. The reversal of 11090820261 is 16202809011.

It is a happy number.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 11090820261 - 2¹ = 11090820259 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11090820761) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 108556 + ... + 184298.

It is an arithmetic number, because the mean of its divisors is an integer number (1848532320).

Almost surely, 2^11090820261 is an apocalyptic number.

It is an amenable number.

11090820261 is a deficient number, since it is larger than the sum of its proper divisors (3697438299).

11090820261 is an equidigital number, since it uses as much as digits as its factorization.

11090820261 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 124555.

The product of its (nonzero) digits is 1728, while the sum is 30.

The spelling of 11090820261 in words is "eleven billion, ninety million, eight hundred twenty thousand, two hundred sixty-one".