613611611113 has 2 divisors, whose sum is σ = 613611611114. Its totient is φ = 613611611112.

The previous prime is 613611611099. The next prime is 613611611243. The reversal of 613611611113 is 311116116316.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 463499532864 + 150112078249 = 680808^2 + 387443^2 .

It is a cyclic number.

It is not a de Polignac number, because 613611611113 - 2²¹ = 613609513961 is a prime.

It is not a weakly prime, because it can be changed into another prime (613611621113) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 306805805556 + 306805805557.

It is an arithmetic number, because the mean of its divisors is an integer number (306805805557).

Almost surely, 2^613611611113 is an apocalyptic number.

It is an amenable number.

613611611113 is a deficient number, since it is larger than the sum of its proper divisors (1).

613611611113 is an equidigital number, since it uses as much as digits as its factorization.

613611611113 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 1944, while the sum is 31.

Adding to 613611611113 its reverse (311116116316), we get a palindrome (924727727429).

The spelling of 613611611113 in words is "six hundred thirteen billion, six hundred eleven million, six hundred eleven thousand, one hundred thirteen".