613311125401 has 4 divisors (see below), whose sum is σ = 660488904292. Its totient is φ = 566133346512.

The previous prime is 613311125389. The next prime is 613311125429. The reversal of 613311125401 is 104521113316.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 211279041801 + 402032083600 = 459651^2 + 634060^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-613311125401 is a prime.

It is a super-2 number, since 2×613311125401² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 613311125401.

It is not an unprimeable number, because it can be changed into a prime (613311128401) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 23588889426 + ... + 23588889451.

It is an arithmetic number, because the mean of its divisors is an integer number (165122226073).

Almost surely, 2^613311125401 is an apocalyptic number.

It is an amenable number.

613311125401 is a deficient number, since it is larger than the sum of its proper divisors (47177778891).

613311125401 is a wasteful number, since it uses less digits than its factorization.

613311125401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 47177778890.

The product of its (nonzero) digits is 2160, while the sum is 28.

Adding to 613311125401 its reverse (104521113316), we get a palindrome (717832238717).

The spelling of 613311125401 in words is "six hundred thirteen billion, three hundred eleven million, one hundred twenty-five thousand, four hundred one".