21340045463183 has 2 divisors, whose sum is σ = 21340045463184. Its totient is φ = 21340045463182.

The previous prime is 21340045463161. The next prime is 21340045463251. The reversal of 21340045463183 is 38136454004312.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 21340045463183 - 2²² = 21340041268879 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21340045463083) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10670022731591 + 10670022731592.

It is an arithmetic number, because the mean of its divisors is an integer number (10670022731592).

Almost surely, 2^{21340045463183} is an apocalyptic number.

21340045463183 is a deficient number, since it is larger than the sum of its proper divisors (1).

21340045463183 is an equidigital number, since it uses as much as digits as its factorization.

21340045463183 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 829440, while the sum is 44.

Adding to 21340045463183 its reverse (38136454004312), we get a palindrome (59476499467495).

The spelling of 21340045463183 in words is "twenty-one trillion, three hundred forty billion, forty-five million, four hundred sixty-three thousand, one hundred eighty-three".