331002230121 has 6 divisors (see below), whose sum is σ = 478114332410. Its totient is φ = 220668153408.

The previous prime is 331002230101. The next prime is 331002230159. The reversal of 331002230121 is 121032200133.

331002230121 is a `hidden beast` number, since 3 + 310 + 0 + 2 + 230 + 121 = 666.

It can be written as a sum of positive squares in only one way, i.e., 254182347225 + 76819882896 = 504165^2 + 277164^2 .

It is not a de Polignac number, because 331002230121 - 2⁷ = 331002229993 is a prime.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 331002230094 and 331002230103.

It is not an unprimeable number, because it can be changed into a prime (331002230101) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 18389012776 + ... + 18389012793.

Almost surely, 2^331002230121 is an apocalyptic number.

It is an amenable number.

331002230121 is a deficient number, since it is larger than the sum of its proper divisors (147112102289).

331002230121 is a wasteful number, since it uses less digits than its factorization.

331002230121 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 36778025575 (or 36778025572 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 331002230121 its reverse (121032200133), we get a palindrome (452034430254).

The spelling of 331002230121 in words is "three hundred thirty-one billion, two million, two hundred thirty thousand, one hundred twenty-one".