320185000121 has 16 divisors (see below), whose sum is σ = 377911296000. Its totient is φ = 265463609040.

The previous prime is 320185000097. The next prime is 320185000139. The reversal of 320185000121 is 121000581023.

It is a happy number.

It is not a de Polignac number, because 320185000121 - 2³⁸ = 45307093177 is a prime.

It is not an unprimeable number, because it can be changed into a prime (320185000151) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 99380 + ... + 806378.

It is an arithmetic number, because the mean of its divisors is an integer number (23619456000).

Almost surely, 2^320185000121 is an apocalyptic number.

320185000121 is a gapful number since it is divisible by the number (31) formed by its first and last digit.

It is an amenable number.

320185000121 is a deficient number, since it is larger than the sum of its proper divisors (57726295879).

320185000121 is a wasteful number, since it uses less digits than its factorization.

320185000121 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 709124.

The product of its (nonzero) digits is 480, while the sum is 23.

Adding to 320185000121 its reverse (121000581023), we get a palindrome (441185581144).

The spelling of 320185000121 in words is "three hundred twenty billion, one hundred eighty-five million, one hundred twenty-one", and thus it is an aban number.