620113312364631 has 4 divisors (see below), whose sum is σ = 826817749819512. Its totient is φ = 413408874909752.

The previous prime is 620113312364629. The next prime is 620113312364647. The reversal of 620113312364631 is 136463213311026.

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 620113312364631 - 2¹ = 620113312364629 is a prime.

It is a super-3 number, since 3×620113312364631³ (a number of 45 digits) contains 333 as substring. Note that it is a super-d number also for d = 2.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (620113312364681) 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, 103352218727436 + ... + 103352218727441.

It is an arithmetic number, because the mean of its divisors is an integer number (206704437454878).

Almost surely, 2^{620113312364631} is an apocalyptic number.

620113312364631 is a deficient number, since it is larger than the sum of its proper divisors (206704437454881).

620113312364631 is a wasteful number, since it uses less digits than its factorization.

620113312364631 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 206704437454880.

The product of its (nonzero) digits is 279936, while the sum is 42.

Adding to 620113312364631 its reverse (136463213311026), we get a palindrome (756576525675657).

The spelling of 620113312364631 in words is "six hundred twenty trillion, one hundred thirteen billion, three hundred twelve million, three hundred sixty-four thousand, six hundred thirty-one".