320040404121 has 8 divisors (see below), whose sum is σ = 428420621664. Its totient is φ = 212510228000.

The previous prime is 320040404107. The next prime is 320040404137. The reversal of 320040404121 is 121404040023.

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 320040404121 - 2⁹ = 320040403609 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320040404821) 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, 212509476 + ... + 212510981.

It is an arithmetic number, because the mean of its divisors is an integer number (53552577708).

Almost surely, 2^320040404121 is an apocalyptic number.

It is an amenable number.

320040404121 is a deficient number, since it is larger than the sum of its proper divisors (108380217543).

320040404121 is a wasteful number, since it uses less digits than its factorization.

320040404121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 425020711.

The product of its (nonzero) digits is 768, while the sum is 21.

Adding to 320040404121 its reverse (121404040023), we get a palindrome (441444444144).

The spelling of 320040404121 in words is "three hundred twenty billion, forty million, four hundred four thousand, one hundred twenty-one".