111243004101440 has 56 divisors (see below), whose sum is σ = 264907794437352. Its totient is φ = 44495456184320.

The previous prime is 111243004101409. The next prime is 111243004101479. The reversal of 111243004101440 is 44101400342111.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 43529064694336 + 67713939407104 = 6597656^2 + 8228848^2 .

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, 1367702 + ... + 14978538.

Almost surely, 2^{111243004101440} is an apocalyptic number.

111243004101440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

111243004101440 is an abundant number, since it is smaller than the sum of its proper divisors (153664790335912).

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

111243004101440 is a wasteful number, since it uses less digits than its factorization.

111243004101440 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 13636395 (or 13636385 counting only the distinct ones).

The product of its (nonzero) digits is 1536, while the sum is 26.

Adding to 111243004101440 its reverse (44101400342111), we get a palindrome (155344404443551).

The spelling of 111243004101440 in words is "one hundred eleven trillion, two hundred forty-three billion, four million, one hundred one thousand, four hundred forty".