4011023 has 4 divisors (see below), whose sum is σ = 4015080. Its totient is φ = 4006968.

The previous prime is 4011017. The next prime is 4011037. The reversal of 4011023 is 3201104.

It is a happy number.

It is a semiprime because it is the product of two primes, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 4011023 - 2¹² = 4006927 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4010995 and 4011013.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4011043) 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, 536 + ... + 2882.

It is an arithmetic number, because the mean of its divisors is an integer number (1003770).

Almost surely, 2^4011023 is an apocalyptic number.

4011023 is a deficient number, since it is larger than the sum of its proper divisors (4057).

4011023 is a wasteful number, since it uses less digits than its factorization.

4011023 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4056.

The product of its (nonzero) digits is 24, while the sum is 11.

The square root of 4011023 is about 2002.7538540719. The cubic root of 4011023 is about 158.8857874723.

Adding to 4011023 its reverse (3201104), we get a palindrome (7212127).

The spelling of 4011023 in words is "four million, eleven thousand, twenty-three".