1243054231125 has 64 divisors (see below), whose sum is σ = 2502989019648. Its totient is φ = 534826675200.

The previous prime is 1243054231109. The next prime is 1243054231127. The reversal of 1243054231125 is 5211324503421.

It is not a de Polignac number, because 1243054231125 - 2⁴ = 1243054231109 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1243054231127) by changing a digit.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 13883154 + ... + 13972403.

It is an arithmetic number, because the mean of its divisors is an integer number (39109203432).

Almost surely, 2^{1243054231125} is an apocalyptic number.

1243054231125 is a gapful number since it is divisible by the number (15) formed by its first and last digit.

It is an amenable number.

1243054231125 is an abundant number, since it is smaller than the sum of its proper divisors (1259934788523).

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

1243054231125 is a wasteful number, since it uses less digits than its factorization.

1243054231125 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 27855599 (or 27855589 counting only the distinct ones).

The product of its (nonzero) digits is 28800, while the sum is 33.

Adding to 1243054231125 its reverse (5211324503421), we get a palindrome (6454378734546).

The spelling of 1243054231125 in words is "one trillion, two hundred forty-three billion, fifty-four million, two hundred thirty-one thousand, one hundred twenty-five".