611600133121 has 4 divisors (see below), whose sum is σ = 612391337172. Its totient is φ = 610808929072.

The previous prime is 611600133119. The next prime is 611600133139. The reversal of 611600133121 is 121331006116.

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 14480752896 + 597119380225 = 120336^2 + 772735^2 .

It is a cyclic number.

It is not a de Polignac number, because 611600133121 - 2¹ = 611600133119 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (611600133181) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 395600866 + ... + 395602411.

It is an arithmetic number, because the mean of its divisors is an integer number (153097834293).

Almost surely, 2^611600133121 is an apocalyptic number.

It is an amenable number.

611600133121 is a deficient number, since it is larger than the sum of its proper divisors (791204051).

611600133121 is an equidigital number, since it uses as much as digits as its factorization.

611600133121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 791204050.

The product of its (nonzero) digits is 648, while the sum is 25.

Adding to 611600133121 its reverse (121331006116), we get a palindrome (732931139237).

The spelling of 611600133121 in words is "six hundred eleven billion, six hundred million, one hundred thirty-three thousand, one hundred twenty-one".