4012011 has 10 divisors (see below), whose sum is σ = 5993372. Its totient is φ = 2674620.

The previous prime is 4011991. The next prime is 4012013. The reversal of 4012011 is 1102104.

It is a happy number.

It is not a de Polignac number, because 4012011 - 2⁵ = 4011979 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (9).

It is a Duffinian number.

4012011 is a lucky number.

It is a junction number, because it is equal to n+sod(n) for n = 4011984 and 4012002.

It is not an unprimeable number, because it can be changed into a prime (4012013) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 24685 + ... + 24846.

Almost surely, 2^4012011 is an apocalyptic number.

4012011 is a deficient number, since it is larger than the sum of its proper divisors (1981361).

4012011 is an equidigital number, since it uses as much as digits as its factorization.

4012011 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49543 (or 49534 counting only the distinct ones).

The product of its (nonzero) digits is 8, while the sum is 9.

The square root of 4012011 is about 2003.0004992511. Note that the first 3 decimals coincide. The cubic root of 4012011 is about 158.8988320473.

Adding to 4012011 its reverse (1102104), we get a palindrome (5114115).

The spelling of 4012011 in words is "four million, twelve thousand, eleven".