4042132413421 has 2 divisors, whose sum is σ = 4042132413422. Its totient is φ = 4042132413420.

The previous prime is 4042132413359. The next prime is 4042132413457. The reversal of 4042132413421 is 1243142312404.

It is a happy number.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2938529637796 + 1103602775625 = 1714214^2 + 1050525^2 .

It is a cyclic number.

It is not a de Polignac number, because 4042132413421 - 2¹⁵ = 4042132380653 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4042132414421) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021066206710 + 2021066206711.

It is an arithmetic number, because the mean of its divisors is an integer number (2021066206711).

Almost surely, 2^{4042132413421} is an apocalyptic number.

It is an amenable number.

4042132413421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042132413421 is an equidigital number, since it uses as much as digits as its factorization.

4042132413421 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 18432, while the sum is 31.

Adding to 4042132413421 its reverse (1243142312404), we get a palindrome (5285274725825).

The spelling of 4042132413421 in words is "four trillion, forty-two billion, one hundred thirty-two million, four hundred thirteen thousand, four hundred twenty-one".