103303031 has 4 divisors (see below), whose sum is σ = 111249432. Its totient is φ = 95356632.

The previous prime is 103303021. The next prime is 103303037. The reversal of 103303031 is 130303301.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 130303301 = 97 ⋅1343333.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-103303031 is a prime.

It is a super-2 number, since 2×103303031² = 21343032427573922, which contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 103302997 and 103303015.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (103303037) 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, 3973181 + ... + 3973206.

It is an arithmetic number, because the mean of its divisors is an integer number (27812358).

Almost surely, 2^103303031 is an apocalyptic number.

103303031 is a deficient number, since it is larger than the sum of its proper divisors (7946401).

103303031 is an equidigital number, since it uses as much as digits as its factorization.

103303031 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 7946400.

The product of its (nonzero) digits is 81, while the sum is 14.

The square root of 103303031 is about 10163.8098663838. The cubic root of 103303031 is about 469.2140644878.

Adding to 103303031 its reverse (130303301), we get a palindrome (233606332).

The spelling of 103303031 in words is "one hundred three million, three hundred three thousand, thirty-one".