4043123401 has 4 divisors (see below), whose sum is σ = 4044452500. Its totient is φ = 4041794304.

The previous prime is 4043123387. The next prime is 4043123419. The reversal of 4043123401 is 1043213404.

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 2204772025 + 1838351376 = 46955^2 + 42876^2 .

It is a cyclic number.

It is not a de Polignac number, because 4043123401 - 2⁵ = 4043123369 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4043123431) 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, 659976 + ... + 666073.

It is an arithmetic number, because the mean of its divisors is an integer number (1011113125).

Almost surely, 2^4043123401 is an apocalyptic number.

It is an amenable number.

4043123401 is a deficient number, since it is larger than the sum of its proper divisors (1329099).

4043123401 is a wasteful number, since it uses less digits than its factorization.

4043123401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1329098.

The product of its (nonzero) digits is 1152, while the sum is 22.

The square root of 4043123401 is about 63585.5596892879. The cubic root of 4043123401 is about 1593.0851850565.

Adding to 4043123401 its reverse (1043213404), we get a palindrome (5086336805).

The spelling of 4043123401 in words is "four billion, forty-three million, one hundred twenty-three thousand, four hundred one".