63313521241 has 4 divisors (see below), whose sum is σ = 63314849232. Its totient is φ = 63312193252.

The previous prime is 63313521223. The next prime is 63313521281. The reversal of 63313521241 is 14212531336.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4.

It is a cyclic number.

It is not a de Polignac number, because 63313521241 - 2¹¹ = 63313519193 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63313521221) 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, 589711 + ... + 688756.

It is an arithmetic number, because the mean of its divisors is an integer number (15828712308).

Almost surely, 2^63313521241 is an apocalyptic number.

It is an amenable number.

63313521241 is a deficient number, since it is larger than the sum of its proper divisors (1327991).

63313521241 is a wasteful number, since it uses less digits than its factorization.

63313521241 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1327990.

The product of its digits is 12960, while the sum is 31.

The spelling of 63313521241 in words is "sixty-three billion, three hundred thirteen million, five hundred twenty-one thousand, two hundred forty-one".