4001134021 has 8 divisors (see below), whose sum is σ = 4068768600. Its totient is φ = 3933565440.

The previous prime is 4001134003. The next prime is 4001134037. The reversal of 4001134021 is 1204311004.

4001134021 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It can be written as a sum of positive squares in 4 ways, for example, as 93508900 + 3907625121 = 9670^2 + 62511^2 .

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 4001134021 - 2⁵ = 4001133989 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4001133986 and 4001134004.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (4001134121) 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, 114465 + ... + 145273.

It is an arithmetic number, because the mean of its divisors is an integer number (508596075).

Almost surely, 2^4001134021 is an apocalyptic number.

It is an amenable number.

4001134021 is a deficient number, since it is larger than the sum of its proper divisors (67634579).

4001134021 is a wasteful number, since it uses less digits than its factorization.

4001134021 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32999.

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

The square root of 4001134021 is about 63254.5177912218. The cubic root of 4001134021 is about 1587.5510499714.

Adding to 4001134021 its reverse (1204311004), we get a palindrome (5205445025).

The spelling of 4001134021 in words is "four billion, one million, one hundred thirty-four thousand, twenty-one".