331412243 has 4 divisors (see below), whose sum is σ = 332591928. Its totient is φ = 330232560.

The previous prime is 331412201. The next prime is 331412281. The reversal of 331412243 is 342214133.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 331412243 - 2¹⁰ = 331411219 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (331412743) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 589421 + ... + 589982.

It is an arithmetic number, because the mean of its divisors is an integer number (83147982).

Almost surely, 2^331412243 is an apocalyptic number.

331412243 is a deficient number, since it is larger than the sum of its proper divisors (1179685).

331412243 is a wasteful number, since it uses less digits than its factorization.

331412243 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1179684.

The product of its digits is 1728, while the sum is 23.

The square root of 331412243 is about 18204.7313355622. The cubic root of 331412243 is about 692.0266975733.

Adding to 331412243 its reverse (342214133), we get a palindrome (673626376).

The spelling of 331412243 in words is "three hundred thirty-one million, four hundred twelve thousand, two hundred forty-three".