331002034021 has 4 divisors (see below), whose sum is σ = 332260597152. Its totient is φ = 329743470892.

The previous prime is 331002034019. The next prime is 331002034057. The reversal of 331002034021 is 120430200133.

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.

It is a cyclic number.

It is not a de Polignac number, because 331002034021 - 2¹ = 331002034019 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 331002034021.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331002034061) 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, 629281171 + ... + 629281696.

It is an arithmetic number, because the mean of its divisors is an integer number (83065149288).

Almost surely, 2^331002034021 is an apocalyptic number.

It is an amenable number.

331002034021 is a deficient number, since it is larger than the sum of its proper divisors (1258563131).

331002034021 is a wasteful number, since it uses less digits than its factorization.

331002034021 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1258563130.

The product of its (nonzero) digits is 432, while the sum is 19.

Adding to 331002034021 its reverse (120430200133), we get a palindrome (451432234154).

The spelling of 331002034021 in words is "three hundred thirty-one billion, two million, thirty-four thousand, twenty-one".