4142352532421 has 2 divisors, whose sum is σ = 4142352532422. Its totient is φ = 4142352532420.

The previous prime is 4142352532397. The next prime is 4142352532427. The reversal of 4142352532421 is 1242352532414.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 2544375912100 + 1597976620321 = 1595110^2 + 1264111^2 .

It is a cyclic number.

It is not a de Polignac number, because 4142352532421 - 2³⁴ = 4125172663237 is a prime.

It is a super-2 number, since 2×4142352532421² (a number of 26 digits) contains 22 as substring.

It is a Sophie Germain prime.

It is a Curzon number.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (4142352532427) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2071176266210 + 2071176266211.

It is an arithmetic number, because the mean of its divisors is an integer number (2071176266211).

Almost surely, 2^{4142352532421} is an apocalyptic number.

It is an amenable number.

4142352532421 is a deficient number, since it is larger than the sum of its proper divisors (1).

4142352532421 is an equidigital number, since it uses as much as digits as its factorization.

4142352532421 is an odious number, because the sum of its binary digits is odd.

The product of its digits is 230400, while the sum is 38.

The spelling of 4142352532421 in words is "four trillion, one hundred forty-two billion, three hundred fifty-two million, five hundred thirty-two thousand, four hundred twenty-one".