4042043031401 has 4 divisors (see below), whose sum is σ = 4042233025092. Its totient is φ = 4041853037712.

The previous prime is 4042043031353. The next prime is 4042043031427. The reversal of 4042043031401 is 1041303402404.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 2361597489001 + 1680445542400 = 1536749^2 + 1296320^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4042043031401 is a prime.

It is a super-2 number, since 2×4042043031401² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (4042043031701) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 94964930 + ... + 95007483.

It is an arithmetic number, because the mean of its divisors is an integer number (1010558256273).

Almost surely, 2^{4042043031401} is an apocalyptic number.

It is an amenable number.

4042043031401 is a deficient number, since it is larger than the sum of its proper divisors (189993691).

4042043031401 is a wasteful number, since it uses less digits than its factorization.

4042043031401 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 189993690.

The product of its (nonzero) digits is 4608, while the sum is 26.

Adding to 4042043031401 its reverse (1041303402404), we get a palindrome (5083346433805).

The spelling of 4042043031401 in words is "four trillion, forty-two billion, forty-three million, thirty-one thousand, four hundred one".