11443231455 has 16 divisors (see below), whose sum is σ = 18471201120. Its totient is φ = 6049046528.

The previous prime is 11443231427. The next prime is 11443231463. The reversal of 11443231455 is 55413234411.

It is a cyclic number.

It is not a de Polignac number, because 11443231455 - 2⁶ = 11443231391 is a prime.

It is a super-2 number, since 2×11443231455² (a number of 21 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 3373890 + ... + 3377279.

It is an arithmetic number, because the mean of its divisors is an integer number (1154450070).

Almost surely, 2^11443231455 is an apocalyptic number.

11443231455 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

11443231455 is a deficient number, since it is larger than the sum of its proper divisors (7027969665).

11443231455 is a wasteful number, since it uses less digits than its factorization.

11443231455 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6751290.

The product of its digits is 28800, while the sum is 33.

Adding to 11443231455 its reverse (55413234411), we get a palindrome (66856465866).

The spelling of 11443231455 in words is "eleven billion, four hundred forty-three million, two hundred thirty-one thousand, four hundred fifty-five".