7631301220513 has 2 divisors, whose sum is σ = 7631301220514. Its totient is φ = 7631301220512.

The previous prime is 7631301220511. The next prime is 7631301220573. The reversal of 7631301220513 is 3150221031367.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 7233856713889 + 397444506624 = 2689583^2 + 630432^2 .

It is an emirp because it is prime and its reverse (3150221031367) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 7631301220513 - 2¹ = 7631301220511 is a prime.

It is a super-3 number, since 3×7631301220513³ (a number of 40 digits) contains 333 as substring.

Together with 7631301220511, it forms a pair of twin primes.

It is not a weakly prime, because it can be changed into another prime (7631301220511) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3815650610256 + 3815650610257.

It is an arithmetic number, because the mean of its divisors is an integer number (3815650610257).

Almost surely, 2^{7631301220513} is an apocalyptic number.

It is an amenable number.

7631301220513 is a deficient number, since it is larger than the sum of its proper divisors (1).

7631301220513 is an equidigital number, since it uses as much as digits as its factorization.

7631301220513 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 22680, while the sum is 34.

The spelling of 7631301220513 in words is "seven trillion, six hundred thirty-one billion, three hundred one million, two hundred twenty thousand, five hundred thirteen".