4000313121 has 8 divisors (see below), whose sum is σ = 6095715264. Its totient is φ = 2285893200.

The previous prime is 4000313059. The next prime is 4000313137. The reversal of 4000313121 is 1213130004.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 4000313121 - 2²⁵ = 3966758689 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 4000313121.

It is not an unprimeable number, because it can be changed into a prime (4000313321) 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, 95245530 + ... + 95245571.

It is an arithmetic number, because the mean of its divisors is an integer number (761964408).

Almost surely, 2^4000313121 is an apocalyptic number.

It is an amenable number.

4000313121 is a deficient number, since it is larger than the sum of its proper divisors (2095402143).

4000313121 is a wasteful number, since it uses less digits than its factorization.

4000313121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 190491111.

The product of its (nonzero) digits is 72, while the sum is 15.

The square root of 4000313121 is about 63248.0285937831. The cubic root of 4000313121 is about 1587.4424716045.

Adding to 4000313121 its reverse (1213130004), we get a palindrome (5213443125).

The spelling of 4000313121 in words is "four billion, three hundred thirteen thousand, one hundred twenty-one".