1211162441135 has 4 divisors (see below), whose sum is σ = 1453394929368. Its totient is φ = 968929952904.

The previous prime is 1211162441089. The next prime is 1211162441149. The reversal of 1211162441135 is 5311442611121.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1211162441135 - 2¹⁴ = 1211162424751 is a prime.

It is a Duffinian number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 121116244109 + ... + 121116244118.

It is an arithmetic number, because the mean of its divisors is an integer number (363348732342).

Almost surely, 2^{1211162441135} is an apocalyptic number.

1211162441135 is a deficient number, since it is larger than the sum of its proper divisors (242232488233).

1211162441135 is an equidigital number, since it uses as much as digits as its factorization.

1211162441135 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 242232488232.

The product of its digits is 5760, while the sum is 32.

The spelling of 1211162441135 in words is "one trillion, two hundred eleven billion, one hundred sixty-two million, four hundred forty-one thousand, one hundred thirty-five".