331003421320240 has 80 divisors (see below), whose sum is σ = 818194839553728. Its totient is φ = 124255262962688.

The previous prime is 331003421320207. The next prime is 331003421320241. The reversal of 331003421320240 is 42023124300133.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (80).

It is a junction number, because it is equal to n+sod(n) for n = 331003421320199 and 331003421320208.

It is not an unprimeable number, because it can be changed into a prime (331003421320241) 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, 1697007799 + ... + 1697202838.

Almost surely, 2^{331003421320240} is an apocalyptic number.

It is an amenable number.

331003421320240 is an abundant number, since it is smaller than the sum of its proper divisors (487191418233488).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

331003421320240 is a wasteful number, since it uses less digits than its factorization.

331003421320240 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 3394210726 (or 3394210720 counting only the distinct ones).

The product of its (nonzero) digits is 10368, while the sum is 28.

Adding to 331003421320240 its reverse (42023124300133), we get a palindrome (373026545620373).

The spelling of 331003421320240 in words is "three hundred thirty-one trillion, three billion, four hundred twenty-one million, three hundred twenty thousand, two hundred forty".