11312444140 has 12 divisors (see below), whose sum is σ = 23756132736. Its totient is φ = 4524977648.

The previous prime is 11312444137. The next prime is 11312444159. The reversal of 11312444140 is 4144421311.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 282811084 + ... + 282811123.

It is an arithmetic number, because the mean of its divisors is an integer number (1979677728).

Almost surely, 2^11312444140 is an apocalyptic number.

11312444140 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

11312444140 is an abundant number, since it is smaller than the sum of its proper divisors (12443688596).

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

11312444140 is a wasteful number, since it uses less digits than its factorization.

11312444140 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 565622216 (or 565622214 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 25.

Adding to 11312444140 its reverse (4144421311), we get a palindrome (15456865451).

The spelling of 11312444140 in words is "eleven billion, three hundred twelve million, four hundred forty-four thousand, one hundred forty".