331343502040 has 32 divisors (see below), whose sum is σ = 758158866000. Its totient is φ = 130291003264.

The previous prime is 331343502019. The next prime is 331343502041. The reversal of 331343502040 is 40205343133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331343502041) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 70197535 + ... + 70202254.

Almost surely, 2^331343502040 is an apocalyptic number.

It is an amenable number.

331343502040 is an abundant number, since it is smaller than the sum of its proper divisors (426815363960).

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

331343502040 is a wasteful number, since it uses less digits than its factorization.

331343502040 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 140399859 (or 140399855 counting only the distinct ones).

The product of its (nonzero) digits is 12960, while the sum is 28.

Adding to 331343502040 its reverse (40205343133), we get a palindrome (371548845173).

The spelling of 331343502040 in words is "three hundred thirty-one billion, three hundred forty-three million, five hundred two thousand, forty".