331002111400021 has 16 divisors (see below), whose sum is σ = 346910675621760. Its totient is φ = 315220048799040.

The previous prime is 331002111400019. The next prime is 331002111400039. The reversal of 331002111400021 is 120004111200133.

It is a cyclic number.

It is not a de Polignac number, because 331002111400021 - 2¹ = 331002111400019 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331002111400001) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 209741131 + ... + 211313383.

It is an arithmetic number, because the mean of its divisors is an integer number (21681917226360).

Almost surely, 2^{331002111400021} is an apocalyptic number.

It is an amenable number.

331002111400021 is a deficient number, since it is larger than the sum of its proper divisors (15908564221739).

331002111400021 is a wasteful number, since it uses less digits than its factorization.

331002111400021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1612476.

The product of its (nonzero) digits is 144, while the sum is 19.

Adding to 331002111400021 its reverse (120004111200133), we get a palindrome (451006222600154).

The spelling of 331002111400021 in words is "three hundred thirty-one trillion, two billion, one hundred eleven million, four hundred thousand, twenty-one".