63215311351243 has 2 divisors, whose sum is σ = 63215311351244. Its totient is φ = 63215311351242.

The previous prime is 63215311351223. The next prime is 63215311351249. The reversal of 63215311351243 is 34215311351236.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 63215311351243 - 2²⁹ = 63214774480331 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 63215311351196 and 63215311351205.

It is not a weakly prime, because it can be changed into another prime (63215311351249) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 31607655675621 + 31607655675622.

It is an arithmetic number, because the mean of its divisors is an integer number (31607655675622).

Almost surely, 2^{63215311351243} is an apocalyptic number.

63215311351243 is a deficient number, since it is larger than the sum of its proper divisors (1).

63215311351243 is an equidigital number, since it uses as much as digits as its factorization.

63215311351243 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 194400, while the sum is 40.

The spelling of 63215311351243 in words is "sixty-three trillion, two hundred fifteen billion, three hundred eleven million, three hundred fifty-one thousand, two hundred forty-three".