613561121103 has 16 divisors (see below), whose sum is σ = 935411592960. Its totient is φ = 350433362496.

The previous prime is 613561121093. The next prime is 613561121119. The reversal of 613561121103 is 301121165316.

It is not a de Polignac number, because 613561121103 - 2⁴ = 613561121087 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (613561121123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 7164438 + ... + 7249571.

It is an arithmetic number, because the mean of its divisors is an integer number (58463224560).

Almost surely, 2^613561121103 is an apocalyptic number.

613561121103 is a deficient number, since it is larger than the sum of its proper divisors (321850471857).

613561121103 is a wasteful number, since it uses less digits than its factorization.

613561121103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14416046.

The product of its (nonzero) digits is 3240, while the sum is 30.

Adding to 613561121103 its reverse (301121165316), we get a palindrome (914682286419).

The spelling of 613561121103 in words is "six hundred thirteen billion, five hundred sixty-one million, one hundred twenty-one thousand, one hundred three".