11456121411 has 64 divisors (see below), whose sum is σ = 19999795200. Its totient is φ = 6344189568.

The previous prime is 11456121377. The next prime is 11456121427. The reversal of 11456121411 is 11412165411.

It is a happy number.

11456121411 is a `hidden beast` number, since 1 + 1 + 4 + 5 + 612 + 1 + 41 + 1 = 666.

It is not a de Polignac number, because 11456121411 - 2⁷ = 11456121283 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is not an unprimeable number, because it can be changed into a prime (11456121431) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 1836045 + ... + 1842273.

It is an arithmetic number, because the mean of its divisors is an integer number (312496800).

Almost surely, 2^11456121411 is an apocalyptic number.

11456121411 is a deficient number, since it is larger than the sum of its proper divisors (8543673789).

11456121411 is a wasteful number, since it uses less digits than its factorization.

11456121411 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6545 (or 6539 counting only the distinct ones).

The product of its digits is 960, while the sum is 27.

Adding to 11456121411 its reverse (11412165411), we get a palindrome (22868286822).

The spelling of 11456121411 in words is "eleven billion, four hundred fifty-six million, one hundred twenty-one thousand, four hundred eleven".