12236351132440 has 64 divisors (see below), whose sum is σ = 27550264579200. Its totient is φ = 4891257090048.

The previous prime is 12236351132431. The next prime is 12236351132459. The reversal of 12236351132440 is 4423115363221.

It is a self number, because there is not a number n which added to its sum of digits gives 12236351132440.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 537401376 + ... + 537424144.

It is an arithmetic number, because the mean of its divisors is an integer number (430472884050).

Almost surely, 2^{12236351132440} is an apocalyptic number.

12236351132440 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

12236351132440 is an abundant number, since it is smaller than the sum of its proper divisors (15313913446760).

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

12236351132440 is a wasteful number, since it uses less digits than its factorization.

12236351132440 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 31204 (or 31200 counting only the distinct ones).

The product of its (nonzero) digits is 103680, while the sum is 37.

Adding to 12236351132440 its reverse (4423115363221), we get a palindrome (16659466495661).

The spelling of 12236351132440 in words is "twelve trillion, two hundred thirty-six billion, three hundred fifty-one million, one hundred thirty-two thousand, four hundred forty".