320212032121 has 8 divisors (see below), whose sum is σ = 330554841344. Its totient is φ = 309870059760.

The previous prime is 320212032097. The next prime is 320212032163. The reversal of 320212032121 is 121230212023.

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 320212032121 - 2²¹ = 320209934969 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (320212032191) 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, 620731 + ... + 1012783.

It is an arithmetic number, because the mean of its divisors is an integer number (41319355168).

Almost surely, 2^320212032121 is an apocalyptic number.

320212032121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

320212032121 is a deficient number, since it is larger than the sum of its proper divisors (10342809223).

320212032121 is a wasteful number, since it uses less digits than its factorization.

320212032121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 418431.

The product of its (nonzero) digits is 288, while the sum is 19.

Adding to 320212032121 its reverse (121230212023), we get a palindrome (441442244144).

The spelling of 320212032121 in words is "three hundred twenty billion, two hundred twelve million, thirty-two thousand, one hundred twenty-one".