331003420340 has 24 divisors (see below), whose sum is σ = 695148949152. Its totient is φ = 132393412640.

The previous prime is 331003420277. The next prime is 331003420367. The reversal of 331003420340 is 43024300133.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 150134 + ... + 827373.

It is an arithmetic number, because the mean of its divisors is an integer number (28964539548).

Almost surely, 2^331003420340 is an apocalyptic number.

It is an amenable number.

331003420340 is an abundant number, since it is smaller than the sum of its proper divisors (364145528812).

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

331003420340 is a wasteful number, since it uses less digits than its factorization.

331003420340 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 994447 (or 994445 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 23.

Adding to 331003420340 its reverse (43024300133), we get a palindrome (374027720473).

The spelling of 331003420340 in words is "three hundred thirty-one billion, three million, four hundred twenty thousand, three hundred forty".