11312014421205 has 24 divisors (see below), whose sum is σ = 19709084899608. Its totient is φ = 6001814900736.

The previous prime is 11312014421189. The next prime is 11312014421207. The reversal of 11312014421205 is 50212441021311.

11312014421205 is a `hidden beast` number, since 1 + 1 + 3 + 1 + 20 + 14 + 421 + 205 = 666.

11312014421205 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 421262008209 + 10890752412996 = 649047^2 + 3300114^2 .

It is not a de Polignac number, because 11312014421205 - 2⁴ = 11312014421189 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11312014421207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 651229912 + ... + 651247281.

It is an arithmetic number, because the mean of its divisors is an integer number (821211870817).

Almost surely, 2^{11312014421205} is an apocalyptic number.

11312014421205 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

11312014421205 is a deficient number, since it is larger than the sum of its proper divisors (8397070478403).

11312014421205 is a wasteful number, since it uses less digits than its factorization.

11312014421205 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1302477397 (or 1302477394 counting only the distinct ones).

The product of its (nonzero) digits is 1920, while the sum is 27.

Adding to 11312014421205 its reverse (50212441021311), we get a palindrome (61524455442516).

The spelling of 11312014421205 in words is "eleven trillion, three hundred twelve billion, fourteen million, four hundred twenty-one thousand, two hundred five".