2011805357 has 4 divisors (see below), whose sum is σ = 2076702336. Its totient is φ = 1946908380.

The previous prime is 2011805303. The next prime is 2011805359. The reversal of 2011805357 is 7535081102.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 2011805357 - 2¹² = 2011801261 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2011805359) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 32448443 + ... + 32448504.

It is an arithmetic number, because the mean of its divisors is an integer number (519175584).

Almost surely, 2^2011805357 is an apocalyptic number.

It is an amenable number.

2011805357 is a deficient number, since it is larger than the sum of its proper divisors (64896979).

2011805357 is an equidigital number, since it uses as much as digits as its factorization.

2011805357 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 64896978.

The product of its (nonzero) digits is 8400, while the sum is 32.

The square root of 2011805357 is about 44853.1532559306. The cubic root of 2011805357 is about 1262.3951579376.

Adding to 2011805357 its reverse (7535081102), we get a palindrome (9546886459).

The spelling of 2011805357 in words is "two billion, eleven million, eight hundred five thousand, three hundred fifty-seven".