331340043 has 8 divisors (see below), whose sum is σ = 444497728. Its totient is φ = 219537864.

The previous prime is 331340041. The next prime is 331340063. The reversal of 331340043 is 340043133.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 331340043 - 2¹ = 331340041 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331340041) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 338305 + ... + 339282.

It is an arithmetic number, because the mean of its divisors is an integer number (55562216).

Almost surely, 2^331340043 is an apocalyptic number.

331340043 is a deficient number, since it is larger than the sum of its proper divisors (113157685).

331340043 is a wasteful number, since it uses less digits than its factorization.

331340043 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 677753.

The product of its (nonzero) digits is 1296, while the sum is 21.

The square root of 331340043 is about 18202.7482265728. The cubic root of 331340043 is about 691.9764399688.

Adding to 331340043 its reverse (340043133), we get a palindrome (671383176).

The spelling of 331340043 in words is "three hundred thirty-one million, three hundred forty thousand, forty-three".