20315334521467 has 2 divisors, whose sum is σ = 20315334521468. Its totient is φ = 20315334521466.

The previous prime is 20315334521431. The next prime is 20315334521497. The reversal of 20315334521467 is 76412543351302.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 20315334521467 - 2²³ = 20315326132859 is a prime.

It is not a weakly prime, because it can be changed into another prime (20315334521497) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10157667260733 + 10157667260734.

It is an arithmetic number, because the mean of its divisors is an integer number (10157667260734).

Almost surely, 2^{20315334521467} is an apocalyptic number.

20315334521467 is a deficient number, since it is larger than the sum of its proper divisors (1).

20315334521467 is an equidigital number, since it uses as much as digits as its factorization.

20315334521467 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1814400, while the sum is 46.

Adding to 20315334521467 its reverse (76412543351302), we get a palindrome (96727877872769).

The spelling of 20315334521467 in words is "twenty trillion, three hundred fifteen billion, three hundred thirty-four million, five hundred twenty-one thousand, four hundred sixty-seven".