61113224173 has 4 divisors (see below), whose sum is σ = 61115167548. Its totient is φ = 61111280800.

The previous prime is 61113224167. The next prime is 61113224191. The reversal of 61113224173 is 37142231116.

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 34740113769 + 26373110404 = 186387^2 + 162398^2 .

It is a cyclic number.

It is not a de Polignac number, because 61113224173 - 2⁵ = 61113224141 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (61113224143) 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, 923728 + ... + 987673.

It is an arithmetic number, because the mean of its divisors is an integer number (15278791887).

Almost surely, 2^61113224173 is an apocalyptic number.

It is an amenable number.

61113224173 is a deficient number, since it is larger than the sum of its proper divisors (1943375).

61113224173 is a wasteful number, since it uses less digits than its factorization.

61113224173 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1943374.

The product of its digits is 6048, while the sum is 31.

Adding to 61113224173 its reverse (37142231116), we get a palindrome (98255455289).

The spelling of 61113224173 in words is "sixty-one billion, one hundred thirteen million, two hundred twenty-four thousand, one hundred seventy-three".