11211644135 has 8 divisors (see below), whose sum is σ = 13782118896. Its totient is φ = 8750551360.

The previous prime is 11211644123. The next prime is 11211644167. The reversal of 11211644135 is 53144611211.

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

It is not a de Polignac number, because 11211644135 - 2⁸ = 11211643879 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 11211644098 and 11211644107.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 27345269 + ... + 27345678.

It is an arithmetic number, because the mean of its divisors is an integer number (1722764862).

Almost surely, 2^11211644135 is an apocalyptic number.

11211644135 is a deficient number, since it is larger than the sum of its proper divisors (2570474761).

11211644135 is an equidigital number, since it uses as much as digits as its factorization.

11211644135 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 54690993.

The product of its digits is 2880, while the sum is 29.

The spelling of 11211644135 in words is "eleven billion, two hundred eleven million, six hundred forty-four thousand, one hundred thirty-five".