2143231134432 has 48 divisors (see below), whose sum is σ = 5626283991552. Its totient is φ = 714371995520.

The previous prime is 2143231134431. The next prime is 2143231134439. The reversal of 2143231134432 is 2344311323412.

It is a tau number, because it is divible by the number of its divisors (48).

It is a nude number because it is divisible by every one of its digits.

It is a junction number, because it is equal to n+sod(n) for n = 2143231134393 and 2143231134402.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (2143231134431) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1225183 + ... + 2405729.

It is an arithmetic number, because the mean of its divisors is an integer number (117214249824).

Almost surely, 2^{2143231134432} is an apocalyptic number.

It is an amenable number.

2143231134432 is an abundant number, since it is smaller than the sum of its proper divisors (3483052857120).

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

2143231134432 is a wasteful number, since it uses less digits than its factorization.

2143231134432 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1199471 (or 1199463 counting only the distinct ones).

The product of its digits is 41472, while the sum is 33.

Adding to 2143231134432 its reverse (2344311323412), we get a palindrome (4487542457844).

The spelling of 2143231134432 in words is "two trillion, one hundred forty-three billion, two hundred thirty-one million, one hundred thirty-four thousand, four hundred thirty-two".