11455144212 has 24 divisors (see below), whose sum is σ = 26730559296. Its totient is φ = 3818111488.

The previous prime is 11455144163. The next prime is 11455144271. The reversal of 11455144212 is 21244155411.

It is a self number, because there is not a number n which added to its sum of digits gives 11455144212.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 218548 + ... + 265844.

It is an arithmetic number, because the mean of its divisors is an integer number (1113773304).

Almost surely, 2^11455144212 is an apocalyptic number.

11455144212 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

11455144212 is an abundant number, since it is smaller than the sum of its proper divisors (15275415084).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

11455144212 is a wasteful number, since it uses less digits than its factorization.

11455144212 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 67487 (or 67485 counting only the distinct ones).

The product of its digits is 6400, while the sum is 30.

Adding to 11455144212 its reverse (21244155411), we get a palindrome (32699299623).

The spelling of 11455144212 in words is "eleven billion, four hundred fifty-five million, one hundred forty-four thousand, two hundred twelve".