4000334121 has 20 divisors (see below), whose sum is σ = 6829495552. Its totient is φ = 2285904888.

The previous prime is 4000334113. The next prime is 4000334123. The reversal of 4000334121 is 1214330004.

It is not a de Polignac number, because 4000334121 - 2³ = 4000334113 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 4000334094 and 4000334103.

It is not an unprimeable number, because it can be changed into a prime (4000334123) by changing a digit.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 3527065 + ... + 3528198.

Almost surely, 2^4000334121 is an apocalyptic number.

It is an amenable number.

4000334121 is a deficient number, since it is larger than the sum of its proper divisors (2829161431).

4000334121 is an equidigital number, since it uses as much as digits as its factorization.

4000334121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7055282 (or 7055273 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 4000334121 is about 63248.1946066447. The cubic root of 4000334121 is about 1587.4452494065.

Adding to 4000334121 its reverse (1214330004), we get a palindrome (5214664125).

The spelling of 4000334121 in words is "four billion, three hundred thirty-four thousand, one hundred twenty-one".