4004020111 has 32 divisors (see below), whose sum is σ = 5107415040. Its totient is φ = 3053102976.

The previous prime is 4004020103. The next prime is 4004020151. The reversal of 4004020111 is 1110204004.

It is not a de Polignac number, because 4004020111 - 2³ = 4004020103 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (13).

It is a junction number, because it is equal to n+sod(n) for n = 4004020091 and 4004020100.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4004020151) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 1917510 + ... + 1919596.

It is an arithmetic number, because the mean of its divisors is an integer number (159606720).

Almost surely, 2^4004020111 is an apocalyptic number.

4004020111 is a deficient number, since it is larger than the sum of its proper divisors (1103394929).

4004020111 is a wasteful number, since it uses less digits than its factorization.

4004020111 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2863.

The product of its (nonzero) digits is 32, while the sum is 13.

The square root of 4004020111 is about 63277.3269900049. The cubic root of 4004020111 is about 1587.9326679476.

Adding to 4004020111 its reverse (1110204004), we get a palindrome (5114224115).

The spelling of 4004020111 in words is "four billion, four million, twenty thousand, one hundred eleven".