331440103 has 4 divisors (see below), whose sum is σ = 332250880. Its totient is φ = 330629328.

The previous prime is 331440077. The next prime is 331440113. The reversal of 331440103 is 301044133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301044133 = 13 ⋅23157241.

It is a cyclic number.

It is not a de Polignac number, because 331440103 - 2¹⁷ = 331309031 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331440113) 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, 404775 + ... + 405592.

It is an arithmetic number, because the mean of its divisors is an integer number (83062720).

Almost surely, 2^331440103 is an apocalyptic number.

331440103 is a deficient number, since it is larger than the sum of its proper divisors (810777).

331440103 is an equidigital number, since it uses as much as digits as its factorization.

331440103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 810776.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 331440103 is about 18205.4965051767. The cubic root of 331440103 is about 692.0460886530.

Adding to 331440103 its reverse (301044133), we get a palindrome (632484236).

The spelling of 331440103 in words is "three hundred thirty-one million, four hundred forty thousand, one hundred three".