11312021200005 has 24 divisors (see below), whose sum is σ = 20760885968472. Its totient is φ = 5678191033344.

The previous prime is 11312021199991. The next prime is 11312021200027. The reversal of 11312021200005 is 50000212021311.

It can be written as a sum of positive squares in 4 ways, for example, as 253889007876 + 11058132192129 = 503874^2 + 3325377^2 .

It is not a de Polignac number, because 11312021200005 - 2⁸ = 11312021199749 is a prime.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 7393477144 + ... + 7393478673.

It is an arithmetic number, because the mean of its divisors is an integer number (865036915353).

Almost surely, 2^{11312021200005} is an apocalyptic number.

11312021200005 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11312021200005 is a deficient number, since it is larger than the sum of its proper divisors (9448864768467).

11312021200005 is a wasteful number, since it uses less digits than its factorization.

11312021200005 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 14786955845 (or 14786955842 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 18.

Adding to 11312021200005 its reverse (50000212021311), we get a palindrome (61312233221316).

The spelling of 11312021200005 in words is "eleven trillion, three hundred twelve billion, twenty-one million, two hundred thousand, five".