4042121232434 has 16 divisors (see below), whose sum is σ = 6420176035416. Its totient is φ = 1902075014400.

The previous prime is 4042121232377. The next prime is 4042121232551. The reversal of 4042121232434 is 4342321212404.

It is a happy number.

It can be written as a sum of positive squares in 4 ways, for example, as 3204261102025 + 837860130409 = 1790045^2 + 915347^2 .

It is a self number, because there is not a number n which added to its sum of digits gives 4042121232434.

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 7 ways as a sum of consecutive naturals, for example, 2454737 + ... + 3756324.

Almost surely, 2^{4042121232434} is an apocalyptic number.

4042121232434 is a deficient number, since it is larger than the sum of its proper divisors (2378054802982).

4042121232434 is a wasteful number, since it uses less digits than its factorization.

4042121232434 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6230221.

The product of its (nonzero) digits is 36864, while the sum is 32.

Adding to 4042121232434 its reverse (4342321212404), we get a palindrome (8384442444838).

The spelling of 4042121232434 in words is "four trillion, forty-two billion, one hundred twenty-one million, two hundred thirty-two thousand, four hundred thirty-four".