331021240001 has 4 divisors (see below), whose sum is σ = 331429405104. Its totient is φ = 330613074900.

The previous prime is 331021239959. The next prime is 331021240003. The reversal of 331021240001 is 100042120133.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also an emirpimes, since its reverse is a distinct semiprime: 100042120133 = 26723 ⋅3743671.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331021240001 is a prime.

It is a super-2 number, since 2×331021240001² (a number of 24 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331021240003) 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 3 ways as a sum of consecutive naturals, for example, 204081335 + ... + 204082956.

It is an arithmetic number, because the mean of its divisors is an integer number (82857351276).

Almost surely, 2^331021240001 is an apocalyptic number.

It is an amenable number.

331021240001 is a deficient number, since it is larger than the sum of its proper divisors (408165103).

331021240001 is an equidigital number, since it uses as much as digits as its factorization.

331021240001 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 408165102.

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 331021240001 its reverse (100042120133), we get a palindrome (431063360134).

The spelling of 331021240001 in words is "three hundred thirty-one billion, twenty-one million, two hundred forty thousand, one".