331340440040243 has 32 divisors (see below), whose sum is σ = 350149836476160. Its totient is φ = 313226901504000.

The previous prime is 331340440040219. The next prime is 331340440040297. The reversal of 331340440040243 is 342040044043133.

It is a cyclic number.

It is not a de Polignac number, because 331340440040243 - 2⁶ = 331340440040179 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331340440040213) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 57575171 + ... + 63068067.

It is an arithmetic number, because the mean of its divisors is an integer number (10942182389880).

Almost surely, 2^{331340440040243} is an apocalyptic number.

331340440040243 is a deficient number, since it is larger than the sum of its proper divisors (18809396435917).

331340440040243 is a wasteful number, since it uses less digits than its factorization.

331340440040243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 5493359.

The product of its (nonzero) digits is 165888, while the sum is 35.

Adding to 331340440040243 its reverse (342040044043133), we get a palindrome (673380484083376).

The spelling of 331340440040243 in words is "three hundred thirty-one trillion, three hundred forty billion, four hundred forty million, forty thousand, two hundred forty-three".