331989103 has 4 divisors (see below), whose sum is σ = 332817408. Its totient is φ = 331160800.

The previous prime is 331989083. The next prime is 331989139. The reversal of 331989103 is 301989133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301989133 = 683 ⋅442151.

It is a cyclic number.

It is not a de Polignac number, because 331989103 - 2¹³ = 331980911 is a prime.

It is a super-2 number, since 2×331989103² = 220433529021489218, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (331989173) 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, 413551 + ... + 414352.

It is an arithmetic number, because the mean of its divisors is an integer number (83204352).

Almost surely, 2^331989103 is an apocalyptic number.

331989103 is a deficient number, since it is larger than the sum of its proper divisors (828305).

331989103 is an equidigital number, since it uses as much as digits as its factorization.

331989103 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 828304.

The product of its (nonzero) digits is 17496, while the sum is 37.

The square root of 331989103 is about 18220.5681305496. The cubic root of 331989103 is about 692.4279814065.

The spelling of 331989103 in words is "three hundred thirty-one million, nine hundred eighty-nine thousand, one hundred three".