613123313 has 4 divisors (see below), whose sum is σ = 668861808. Its totient is φ = 557384820.

The previous prime is 613123289. The next prime is 613123321. The reversal of 613123313 is 313321316.

It is a happy number.

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 613123313 - 2¹⁶ = 613057777 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (613123373) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 27869231 + ... + 27869252.

It is an arithmetic number, because the mean of its divisors is an integer number (167215452).

Almost surely, 2^613123313 is an apocalyptic number.

It is an amenable number.

613123313 is a deficient number, since it is larger than the sum of its proper divisors (55738495).

613123313 is a wasteful number, since it uses less digits than its factorization.

613123313 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 55738494.

The product of its digits is 972, while the sum is 23.

The square root of 613123313 is about 24761.3269636342. The cubic root of 613123313 is about 849.5376091790.

Adding to 613123313 its reverse (313321316), we get a palindrome (926444629).

The spelling of 613123313 in words is "six hundred thirteen million, one hundred twenty-three thousand, three hundred thirteen".