1243234052235 has 72 divisors (see below), whose sum is σ = 2615755727520. Its totient is φ = 543625302528.

The previous prime is 1243234052219. The next prime is 1243234052293. The reversal of 1243234052235 is 5322504323421.

1243234052235 is a `hidden beast` number, since 1 + 2 + 4 + 3 + 23 + 405 + 223 + 5 = 666.

It is not a de Polignac number, because 1243234052235 - 2⁴ = 1243234052219 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1243234052235.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 71 ways as a sum of consecutive naturals, for example, 12206350 + ... + 12307779.

It is an arithmetic number, because the mean of its divisors is an integer number (36329940660).

Almost surely, 2^{1243234052235} is an apocalyptic number.

1243234052235 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

1243234052235 is an abundant number, since it is smaller than the sum of its proper divisors (1372521675285).

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

1243234052235 is a wasteful number, since it uses less digits than its factorization.

1243234052235 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24514177 (or 24514167 counting only the distinct ones).

The product of its (nonzero) digits is 172800, while the sum is 36.

Adding to 1243234052235 its reverse (5322504323421), we get a palindrome (6565738375656).

The spelling of 1243234052235 in words is "one trillion, two hundred forty-three billion, two hundred thirty-four million, fifty-two thousand, two hundred thirty-five".