4021430343112 has 128 divisors (see below), whose sum is σ = 9462146883840. Its totient is φ = 1559873479680.

The previous prime is 4021430343109. The next prime is 4021430343209. The reversal of 4021430343112 is 2113430341204.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (28).

It is an unprimeable number.

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 in 31 ways as a sum of consecutive naturals, for example, 13934503 + ... + 14220169.

It is an arithmetic number, because the mean of its divisors is an integer number (73923022530).

Almost surely, 2^{4021430343112} is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 4021430343112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (4731073441920).

4021430343112 is an abundant number, since it is smaller than the sum of its proper divisors (5440716540728).

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

4021430343112 is a wasteful number, since it uses less digits than its factorization.

4021430343112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 286071 (or 286067 counting only the distinct ones).

The product of its (nonzero) digits is 6912, while the sum is 28.

Adding to 4021430343112 its reverse (2113430341204), we get a palindrome (6134860684316).

The spelling of 4021430343112 in words is "four trillion, twenty-one billion, four hundred thirty million, three hundred forty-three thousand, one hundred twelve".