331102130321021 has 16 divisors (see below), whose sum is σ = 344531688171264. Its totient is φ = 317938774031424.

The previous prime is 331102130320901. The next prime is 331102130321051. The reversal of 331102130321021 is 120123031201133.

It is a cyclic number.

It is not a de Polignac number, because 331102130321021 - 2²⁶ = 331102063212157 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331102130321051) 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, 189675230 + ... + 191412896.

It is an arithmetic number, because the mean of its divisors is an integer number (21533230510704).

Almost surely, 2^{331102130321021} is an apocalyptic number.

It is an amenable number.

331102130321021 is a deficient number, since it is larger than the sum of its proper divisors (13429557850243).

331102130321021 is a wasteful number, since it uses less digits than its factorization.

331102130321021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1814260.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 331102130321021 its reverse (120123031201133), we get a palindrome (451225161522154).

The spelling of 331102130321021 in words is "three hundred thirty-one trillion, one hundred two billion, one hundred thirty million, three hundred twenty-one thousand, twenty-one".