7313613331 has 4 divisors (see below), whose sum is σ = 7329478464. Its totient is φ = 7297748200.

The previous prime is 7313613319. The next prime is 7313613337. The reversal of 7313613331 is 1333163137.

It is a happy number.

7313613331 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 1333163137 = 17 ⋅78421361.

It is a cyclic number.

It is not a de Polignac number, because 7313613331 - 2¹⁵ = 7313580563 is a prime.

It is a super-2 number, since 2×7313613331² (a number of 21 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 7313613293 and 7313613302.

It is not an unprimeable number, because it can be changed into a prime (7313613337) 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, 7931875 + ... + 7932796.

It is an arithmetic number, because the mean of its divisors is an integer number (1832369616).

Almost surely, 2^7313613331 is an apocalyptic number.

7313613331 is a deficient number, since it is larger than the sum of its proper divisors (15865133).

7313613331 is a wasteful number, since it uses less digits than its factorization.

7313613331 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 15865132.

The product of its digits is 10206, while the sum is 31.

The square root of 7313613331 is about 85519.6663405558. Note that the first 3 decimals coincide. The cubic root of 7313613331 is about 1941.0825193587.

Adding to 7313613331 its reverse (1333163137), we get a palindrome (8646776468).

The spelling of 7313613331 in words is "seven billion, three hundred thirteen million, six hundred thirteen thousand, three hundred thirty-one".