134620661111 has 4 divisors (see below), whose sum is σ = 134670394392. Its totient is φ = 134570927832.

The previous prime is 134620661057. The next prime is 134620661117. The reversal of 134620661111 is 111166026431.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 111166026431 = 23 ⋅4833305497.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-134620661111 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 (134620661117) 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, 24862580 + ... + 24867993.

It is an arithmetic number, because the mean of its divisors is an integer number (33667598598).

Almost surely, 2^134620661111 is an apocalyptic number.

134620661111 is a deficient number, since it is larger than the sum of its proper divisors (49733281).

134620661111 is an equidigital number, since it uses as much as digits as its factorization.

134620661111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49733280.

The product of its (nonzero) digits is 5184, while the sum is 32.

Adding to 134620661111 its reverse (111166026431), we get a palindrome (245786687542).

The spelling of 134620661111 in words is "one hundred thirty-four billion, six hundred twenty million, six hundred sixty-one thousand, one hundred eleven".