1243004400132 has 48 divisors (see below), whose sum is σ = 3164076556032. Its totient is φ = 376660219680.

The previous prime is 1243004400119. The next prime is 1243004400163. The reversal of 1243004400132 is 2310044003421.

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 15 ways as a sum of consecutive naturals, for example, 11932023 + ... + 12035745.

It is an arithmetic number, because the mean of its divisors is an integer number (65918261584).

Almost surely, 2^{1243004400132} is an apocalyptic number.

1243004400132 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1243004400132 is an abundant number, since it is smaller than the sum of its proper divisors (1921072155900).

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

1243004400132 is a wasteful number, since it uses less digits than its factorization.

1243004400132 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 194528 (or 194526 counting only the distinct ones).

The product of its (nonzero) digits is 2304, while the sum is 24.

Adding to 1243004400132 its reverse (2310044003421), we get a palindrome (3553048403553).

The spelling of 1243004400132 in words is "one trillion, two hundred forty-three billion, four million, four hundred thousand, one hundred thirty-two".