4001212043 has 8 divisors (see below), whose sum is σ = 4202831616. Its totient is φ = 3801897000.

The previous prime is 4001212031. The next prime is 4001212063. The reversal of 4001212043 is 3402121004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 4001212043 - 2¹⁸ = 4000949899 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4001212013) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 572573 + ... + 579518.

It is an arithmetic number, because the mean of its divisors is an integer number (525353952).

Almost surely, 2^4001212043 is an apocalyptic number.

4001212043 is a deficient number, since it is larger than the sum of its proper divisors (201619573).

4001212043 is a wasteful number, since it uses less digits than its factorization.

4001212043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1152265.

The product of its (nonzero) digits is 192, while the sum is 17.

The square root of 4001212043 is about 63255.1345188673. The cubic root of 4001212043 is about 1587.5613689711.

Adding to 4001212043 its reverse (3402121004), we get a palindrome (7403333047).

The spelling of 4001212043 in words is "four billion, one million, two hundred twelve thousand, forty-three".