4042403021043 has 32 divisors (see below), whose sum is σ = 6182946375680. Its totient is φ = 2607573396960.

The previous prime is 4042403020993. The next prime is 4042403021071. The reversal of 4042403021043 is 3401203042404.

It is a happy number.

4042403021043 is a `hidden beast` number, since 4 + 0 + 4 + 2 + 403 + 0 + 210 + 43 = 666.

It is not a de Polignac number, because 4042403021043 - 2¹⁴ = 4042403004659 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (27).

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4042403020998 and 4042403021016.

It is not an unprimeable number, because it can be changed into a prime (4042403021543) 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, 4739580 + ... + 5527062.

It is an arithmetic number, because the mean of its divisors is an integer number (193217074240).

Almost surely, 2^{4042403021043} is an apocalyptic number.

4042403021043 is a deficient number, since it is larger than the sum of its proper divisors (2140543354637).

4042403021043 is a wasteful number, since it uses less digits than its factorization.

4042403021043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 793656 (or 793650 counting only the distinct ones).

The product of its (nonzero) digits is 9216, while the sum is 27.

Adding to 4042403021043 its reverse (3401203042404), we get a palindrome (7443606063447).

The spelling of 4042403021043 in words is "four trillion, forty-two billion, four hundred three million, twenty-one thousand, forty-three".