1243141431424 has 32 divisors (see below), whose sum is σ = 2490253578540. Its totient is φ = 618136611840.

The previous prime is 1243141431349. The next prime is 1243141431461. The reversal of 1243141431424 is 4241341413421.

It can be written as a sum of positive squares in 2 ways, for example, as 840830313024 + 402311118400 = 916968^2 + 634280^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a self number, because there is not a number n which added to its sum of digits gives 1243141431424.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 26805679 + ... + 26852014.

Almost surely, 2^{1243141431424} is an apocalyptic number.

It is an amenable number.

1243141431424 is an abundant number, since it is smaller than the sum of its proper divisors (1247112147116).

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

1243141431424 is an equidigital number, since it uses as much as digits as its factorization.

1243141431424 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 53657888 (or 53657876 counting only the distinct ones).

The product of its digits is 36864, while the sum is 34.

Adding to 1243141431424 its reverse (4241341413421), we get a palindrome (5484482844845).

The spelling of 1243141431424 in words is "one trillion, two hundred forty-three billion, one hundred forty-one million, four hundred thirty-one thousand, four hundred twenty-four".