4043423001031 has 4 divisors (see below), whose sum is σ = 4043557753432. Its totient is φ = 4043288248632.

The previous prime is 4043423001017. The next prime is 4043423001049. The reversal of 4043423001031 is 1301003243404.

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

It is a cyclic number.

It is not a de Polignac number, because 4043423001031 - 2⁴¹ = 1844399745479 is a prime.

It is a super-2 number, since 2×4043423001031² (a number of 26 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4043423000987 and 4043423001005.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4043423001061) 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, 67331181 + ... + 67391206.

It is an arithmetic number, because the mean of its divisors is an integer number (1010889438358).

Almost surely, 2^{4043423001031} is an apocalyptic number.

4043423001031 is a deficient number, since it is larger than the sum of its proper divisors (134752401).

4043423001031 is a wasteful number, since it uses less digits than its factorization.

4043423001031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 134752400.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 4043423001031 its reverse (1301003243404), we get a palindrome (5344426244435).

The spelling of 4043423001031 in words is "four trillion, forty-three billion, four hundred twenty-three million, one thousand, thirty-one".