331142240503 has 4 divisors (see below), whose sum is σ = 333524558920. Its totient is φ = 328759922088.

The previous prime is 331142240483. The next prime is 331142240509. The reversal of 331142240503 is 305042241133.

It is a happy number.

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 331142240503 - 2⁹ = 331142239991 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 (331142240509) 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, 1191159000 + ... + 1191159277.

It is an arithmetic number, because the mean of its divisors is an integer number (83381139730).

Almost surely, 2^331142240503 is an apocalyptic number.

331142240503 is a deficient number, since it is larger than the sum of its proper divisors (2382318417).

331142240503 is a wasteful number, since it uses less digits than its factorization.

331142240503 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2382318416.

The product of its (nonzero) digits is 8640, while the sum is 28.

Adding to 331142240503 its reverse (305042241133), we get a palindrome (636184481636).

The spelling of 331142240503 in words is "three hundred thirty-one billion, one hundred forty-two million, two hundred forty thousand, five hundred three".