20404366313 has 4 divisors (see below), whose sum is σ = 20511195648. Its totient is φ = 20297536980.

The previous prime is 20404366261. The next prime is 20404366319. The reversal of 20404366313 is 31366340402.

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 20404366313 - 2⁶ = 20404366249 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 20404366313.

It is not an unprimeable number, because it can be changed into a prime (20404366319) by changing a digit.

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 3 ways as a sum of consecutive naturals, for example, 53414381 + ... + 53414762.

It is an arithmetic number, because the mean of its divisors is an integer number (5127798912).

Almost surely, 2^20404366313 is an apocalyptic number.

It is an amenable number.

20404366313 is a deficient number, since it is larger than the sum of its proper divisors (106829335).

20404366313 is a wasteful number, since it uses less digits than its factorization.

20404366313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 106829334.

The product of its (nonzero) digits is 31104, while the sum is 32.

The spelling of 20404366313 in words is "twenty billion, four hundred four million, three hundred sixty-six thousand, three hundred thirteen".