331231021020001 has 8 divisors (see below), whose sum is σ = 331839168456320. Its totient is φ = 330622883096688.

The previous prime is 331231021019957. The next prime is 331231021020007. The reversal of 331231021020001 is 100020120132133.

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 331231021020001 - 2³⁹ = 330681265206113 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331231021020007) 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 7 ways as a sum of consecutive naturals, for example, 69304555 + ... + 73929583.

It is an arithmetic number, because the mean of its divisors is an integer number (41479896057040).

Almost surely, 2^{331231021020001} is an apocalyptic number.

It is an amenable number.

331231021020001 is a deficient number, since it is larger than the sum of its proper divisors (608147436319).

331231021020001 is a wasteful number, since it uses less digits than its factorization.

331231021020001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4756503.

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 331231021020001 its reverse (100020120132133), we get a palindrome (431251141152134).

The spelling of 331231021020001 in words is "three hundred thirty-one trillion, two hundred thirty-one billion, twenty-one million, twenty thousand, one".