63316231513 has 4 divisors (see below), whose sum is σ = 66069111168. Its totient is φ = 60563351860.

The previous prime is 63316231477. The next prime is 63316231603. The reversal of 63316231513 is 31513261336.

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 63316231513 - 2²⁹ = 62779360601 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (63316231613) 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, 1376439793 + ... + 1376439838.

It is an arithmetic number, because the mean of its divisors is an integer number (16517277792).

Almost surely, 2^63316231513 is an apocalyptic number.

It is an amenable number.

63316231513 is a deficient number, since it is larger than the sum of its proper divisors (2752879655).

63316231513 is a wasteful number, since it uses less digits than its factorization.

63316231513 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2752879654.

The product of its digits is 29160, while the sum is 34.

Adding to 63316231513 its reverse (31513261336), we get a palindrome (94829492849).

The spelling of 63316231513 in words is "sixty-three billion, three hundred sixteen million, two hundred thirty-one thousand, five hundred thirteen".