611442240213 has 8 divisors (see below), whose sum is σ = 931721508928. Its totient is φ = 349395565824.

The previous prime is 611442240181. The next prime is 611442240239. The reversal of 611442240213 is 312042244116.

611442240213 is digitally balanced in base 2 and base 4, because in such bases it contains all the possibile digits an equal number of times.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 611442240213 - 2⁵ = 611442240181 is a prime.

It is a super-2 number, since 2×611442240213² (a number of 24 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (611442241213) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 14558148556 + ... + 14558148597.

It is an arithmetic number, because the mean of its divisors is an integer number (116465188616).

Almost surely, 2^611442240213 is an apocalyptic number.

It is an amenable number.

611442240213 is a deficient number, since it is larger than the sum of its proper divisors (320279268715).

611442240213 is a wasteful number, since it uses less digits than its factorization.

611442240213 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 29116297163.

The product of its (nonzero) digits is 9216, while the sum is 30.

Adding to 611442240213 its reverse (312042244116), we get a palindrome (923484484329).

The spelling of 611442240213 in words is "six hundred eleven billion, four hundred forty-two million, two hundred forty thousand, two hundred thirteen".