63203644315243 has 4 divisors (see below), whose sum is σ = 63203731704328. Its totient is φ = 63203556926160.

The previous prime is 63203644315193. The next prime is 63203644315291. The reversal of 63203644315243 is 34251344630236.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 63203644315243 - 2⁴¹ = 61004621059691 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 63203644315193 and 63203644315202.

It is not an unprimeable number, because it can be changed into a prime (63203644315043) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 42600546 + ... + 44059207.

It is an arithmetic number, because the mean of its divisors is an integer number (15800932926082).

Almost surely, 2^{63203644315243} is an apocalyptic number.

63203644315243 is a deficient number, since it is larger than the sum of its proper divisors (87389085).

63203644315243 is an equidigital number, since it uses as much as digits as its factorization.

63203644315243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 87389084.

The product of its (nonzero) digits is 3732480, while the sum is 46.

Adding to 63203644315243 its reverse (34251344630236), we get a palindrome (97454988945479).

The spelling of 63203644315243 in words is "sixty-three trillion, two hundred three billion, six hundred forty-four million, three hundred fifteen thousand, two hundred forty-three".