20312104323213 has 8 divisors (see below), whose sum is σ = 30092006404800. Its totient is φ = 13541402882124.

The previous prime is 20312104323209. The next prime is 20312104323233. The reversal of 20312104323213 is 31232340121302.

20312104323213 is a `hidden beast` number, since 2 + 0 + 3 + 1 + 2 + 10 + 432 + 3 + 213 = 666.

It is not a de Polignac number, because 20312104323213 - 2² = 20312104323209 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27), and also a Moran number because the ratio is a prime number: 752300160119 = 20312104323213 / (2 + 0 + 3 + 1 + 2 + 1 + 0 + 4 + 3 + 2 + 3 + 2 + 1 + 3).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20312104323233) 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, 376150080033 + ... + 376150080086.

It is an arithmetic number, because the mean of its divisors is an integer number (3761500800600).

Almost surely, 2^{20312104323213} is an apocalyptic number.

It is an amenable number.

20312104323213 is a deficient number, since it is larger than the sum of its proper divisors (9779902081587).

20312104323213 is an equidigital number, since it uses as much as digits as its factorization.

20312104323213 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 752300160128 (or 752300160122 counting only the distinct ones).

The product of its (nonzero) digits is 5184, while the sum is 27.

Adding to 20312104323213 its reverse (31232340121302), we get a palindrome (51544444444515).

The spelling of 20312104323213 in words is "twenty trillion, three hundred twelve billion, one hundred four million, three hundred twenty-three thousand, two hundred thirteen".