331113103 has 4 divisors (see below), whose sum is σ = 331265608. Its totient is φ = 330960600.

The previous prime is 331113059. The next prime is 331113109. The reversal of 331113103 is 301311133.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 301311133 = 223 ⋅1351171.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-331113103 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 (331113109) 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, 72948 + ... + 77353.

It is an arithmetic number, because the mean of its divisors is an integer number (82816402).

Almost surely, 2^331113103 is an apocalyptic number.

331113103 is a deficient number, since it is larger than the sum of its proper divisors (152505).

331113103 is a wasteful number, since it uses less digits than its factorization.

331113103 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 152504.

The product of its (nonzero) digits is 81, while the sum is 16.

The square root of 331113103 is about 18196.5134847311. The cubic root of 331113103 is about 691.8184220427.

Adding to 331113103 its reverse (301311133), we get a palindrome (632424236).

The spelling of 331113103 in words is "three hundred thirty-one million, one hundred thirteen thousand, one hundred three".