20304611127047 has 16 divisors (see below), whose sum is σ = 21920696726880. Its totient is φ = 18696270362112.

The previous prime is 20304611127023. The next prime is 20304611127079. The reversal of 20304611127047 is 74072111640302.

It is a cyclic number.

It is not a de Polignac number, because 20304611127047 - 2²⁶ = 20304544018183 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 20304611127047.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (20304611127007) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 259733588 + ... + 259811750.

It is an arithmetic number, because the mean of its divisors is an integer number (1370043545430).

Almost surely, 2^{20304611127047} is an apocalyptic number.

20304611127047 is a deficient number, since it is larger than the sum of its proper divisors (1616085599833).

20304611127047 is a wasteful number, since it uses less digits than its factorization.

20304611127047 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 127442.

The product of its (nonzero) digits is 56448, while the sum is 38.

Adding to 20304611127047 its reverse (74072111640302), we get a palindrome (94376722767349).

The spelling of 20304611127047 in words is "twenty trillion, three hundred four billion, six hundred eleven million, one hundred twenty-seven thousand, forty-seven".