331117463 has 4 divisors (see below), whose sum is σ = 332072040. Its totient is φ = 330162888.

The previous prime is 331117441. The next prime is 331117471. The reversal of 331117463 is 364711133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 364711133 = 167 ⋅2183899.

It is a cyclic number.

It is not a de Polignac number, because 331117463 - 2²⁰ = 330068887 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 (331117433) 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, 476768 + ... + 477461.

It is an arithmetic number, because the mean of its divisors is an integer number (83018010).

Almost surely, 2^331117463 is an apocalyptic number.

331117463 is a deficient number, since it is larger than the sum of its proper divisors (954577).

331117463 is an equidigital number, since it uses as much as digits as its factorization.

331117463 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 954576.

The product of its digits is 4536, while the sum is 29.

The square root of 331117463 is about 18196.6332875068. The cubic root of 331117463 is about 691.8214585832.

Adding to 331117463 its reverse (364711133), we get a palindrome (695828596).

The spelling of 331117463 in words is "three hundred thirty-one million, one hundred seventeen thousand, four hundred sixty-three".