4043012011 has 4 divisors (see below), whose sum is σ = 4044747312. Its totient is φ = 4041276712.

The previous prime is 4043011981. The next prime is 4043012027. The reversal of 4043012011 is 1102103404.

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 4043012011 - 2⁷ = 4043011883 is a prime.

It is a super-2 number, since 2×4043012011² = 32691892242180528242, which contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (4043012411) 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, 864151 + ... + 868816.

It is an arithmetic number, because the mean of its divisors is an integer number (1011186828).

Almost surely, 2^4043012011 is an apocalyptic number.

4043012011 is a deficient number, since it is larger than the sum of its proper divisors (1735301).

4043012011 is a wasteful number, since it uses less digits than its factorization.

4043012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1735300.

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 4043012011 is about 63584.6837768342. The cubic root of 4043012011 is about 1593.0705548337.

Adding to 4043012011 its reverse (1102103404), we get a palindrome (5145115415).

It can be divided in two parts, 40430 and 12011, that added together give a square (52441 = 229²).

The spelling of 4043012011 in words is "four billion, forty-three million, twelve thousand, eleven".