11161423211 has 8 divisors (see below), whose sum is σ = 11349240864. Its totient is φ = 10973761920.

The previous prime is 11161423201. The next prime is 11161423267. The reversal of 11161423211 is 11232416111.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-11161423211 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (11161423201) 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, 109586 + ... + 185288.

It is an arithmetic number, because the mean of its divisors is an integer number (1418655108).

Almost surely, 2^11161423211 is an apocalyptic number.

11161423211 is a deficient number, since it is larger than the sum of its proper divisors (187817653).

11161423211 is an equidigital number, since it uses as much as digits as its factorization.

11161423211 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 78181.

The product of its digits is 288, while the sum is 23.

Adding to 11161423211 its reverse (11232416111), we get a palindrome (22393839322).

The spelling of 11161423211 in words is "eleven billion, one hundred sixty-one million, four hundred twenty-three thousand, two hundred eleven".