12161263411 has 8 divisors (see below), whose sum is σ = 13268890800. Its totient is φ = 11053979040.

The previous prime is 12161263403. The next prime is 12161263417. The reversal of 12161263411 is 11436216121.

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

It is a cyclic number.

It is not a de Polignac number, because 12161263411 - 2³ = 12161263403 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 12161263411.

It is not an unprimeable number, because it can be changed into a prime (12161263417) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8596 + ... + 156193.

It is an arithmetic number, because the mean of its divisors is an integer number (1658611350).

Almost surely, 2^12161263411 is an apocalyptic number.

12161263411 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

12161263411 is a deficient number, since it is larger than the sum of its proper divisors (1107627389).

12161263411 is a wasteful number, since it uses less digits than its factorization.

12161263411 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 171509.

The product of its digits is 1728, while the sum is 28.

Adding to 12161263411 its reverse (11436216121), we get a palindrome (23597479532).

It can be divided in two parts, 12161 and 263411, that added together give a palindrome (275572).

The spelling of 12161263411 in words is "twelve billion, one hundred sixty-one million, two hundred sixty-three thousand, four hundred eleven".