4042143401 has 2 divisors, whose sum is σ = 4042143402. Its totient is φ = 4042143400.

The previous prime is 4042143379. The next prime is 4042143461. The reversal of 4042143401 is 1043412404.

It is a happy number.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 3466383376 + 575760025 = 58876^2 + 23995^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-4042143401 is a prime.

It is a super-3 number, since 3×4042143401³ (a number of 30 digits) contains 333 as substring.

It is not a weakly prime, because it can be changed into another prime (4042143461) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 2021071700 + 2021071701.

It is an arithmetic number, because the mean of its divisors is an integer number (2021071701).

Almost surely, 2^4042143401 is an apocalyptic number.

It is an amenable number.

4042143401 is a deficient number, since it is larger than the sum of its proper divisors (1).

4042143401 is an equidigital number, since it uses as much as digits as its factorization.

4042143401 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1536, while the sum is 23.

The square root of 4042143401 is about 63577.8530700746. The cubic root of 4042143401 is about 1592.9564603485.

Adding to 4042143401 its reverse (1043412404), we get a palindrome (5085555805).

The spelling of 4042143401 in words is "four billion, forty-two million, one hundred forty-three thousand, four hundred one".