4021430342142 has 64 divisors (see below), whose sum is σ = 8409901697280. Its totient is φ = 1280343826944.

The previous prime is 4021430342131. The next prime is 4021430342143. The reversal of 4021430342142 is 2412430341204.

It is a super-2 number, since 2×4021430342142² (a number of 26 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4021430342143) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 10087693 + ... + 10478759.

It is an arithmetic number, because the mean of its divisors is an integer number (131404714020).

Almost surely, 2^{4021430342142} is an apocalyptic number.

4021430342142 is an abundant number, since it is smaller than the sum of its proper divisors (4388471355138).

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

4021430342142 is a wasteful number, since it uses less digits than its factorization.

4021430342142 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 391737.

The product of its (nonzero) digits is 18432, while the sum is 30.

Adding to 4021430342142 its reverse (2412430341204), we get a palindrome (6433860683346).

The spelling of 4021430342142 in words is "four trillion, twenty-one billion, four hundred thirty million, three hundred forty-two thousand, one hundred forty-two".