21603214127063 has 2 divisors, whose sum is σ = 21603214127064. Its totient is φ = 21603214127062.

The previous prime is 21603214127039. The next prime is 21603214127087. The reversal of 21603214127063 is 36072141230612.

It is a balanced prime because it is at equal distance from previous prime (21603214127039) and next prime (21603214127087).

It is a cyclic number.

It is not a de Polignac number, because 21603214127063 - 2²⁶ = 21603147018199 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (21603214147063) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 10801607063531 + 10801607063532.

It is an arithmetic number, because the mean of its divisors is an integer number (10801607063532).

Almost surely, 2^{21603214127063} is an apocalyptic number.

21603214127063 is a deficient number, since it is larger than the sum of its proper divisors (1).

21603214127063 is an equidigital number, since it uses as much as digits as its factorization.

21603214127063 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 72576, while the sum is 38.

Adding to 21603214127063 its reverse (36072141230612), we get a palindrome (57675355357675).

The spelling of 21603214127063 in words is "twenty-one trillion, six hundred three billion, two hundred fourteen million, one hundred twenty-seven thousand, sixty-three".