11311241144 has 48 divisors (see below), whose sum is σ = 24697441080. Its totient is φ = 4842519360.

The previous prime is 11311241143. The next prime is 11311241167. The reversal of 11311241144 is 44114211311.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (11311241143) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 365774 + ... + 395490.

Almost surely, 2^11311241144 is an apocalyptic number.

11311241144 is a gapful number since it is divisible by the number (14) formed by its first and last digit.

It is an amenable number.

11311241144 is an abundant number, since it is smaller than the sum of its proper divisors (13386199936).

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

11311241144 is a wasteful number, since it uses less digits than its factorization.

11311241144 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30708 (or 30697 counting only the distinct ones).

The product of its digits is 384, while the sum is 23.

Adding to 11311241144 its reverse (44114211311), we get a palindrome (55425452455).

The spelling of 11311241144 in words is "eleven billion, three hundred eleven million, two hundred forty-one thousand, one hundred forty-four".