4021342102443 has 32 divisors (see below), whose sum is σ = 5417037674496. Its totient is φ = 2653431297408.

The previous prime is 4021342102433. The next prime is 4021342102457. The reversal of 4021342102443 is 3442012431204.

It is a de Polignac number, because none of the positive numbers 2^k-4021342102443 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4021342102443.

It is not an unprimeable number, because it can be changed into a prime (4021342102433) 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, 120048405 + ... + 120081897.

It is an arithmetic number, because the mean of its divisors is an integer number (169282427328).

Almost surely, 2^{4021342102443} is an apocalyptic number.

4021342102443 is a deficient number, since it is larger than the sum of its proper divisors (1395695572053).

4021342102443 is a wasteful number, since it uses less digits than its factorization.

4021342102443 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 34683.

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

Adding to 4021342102443 its reverse (3442012431204), we get a palindrome (7463354533647).

The spelling of 4021342102443 in words is "four trillion, twenty-one billion, three hundred forty-two million, one hundred two thousand, four hundred forty-three".