123303031 has 6 divisors (see below), whose sum is σ = 126385496. Its totient is φ = 120294000.

The previous prime is 123303029. The next prime is 123303053. The reversal of 123303031 is 130303321.

It is not a de Polignac number, because 123303031 - 2¹ = 123303029 is a prime.

It is a super-2 number, since 2×123303031² = 30407274907573922, 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 = 123302996 and 123303014.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123306031) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 5 ways as a sum of consecutive naturals, for example, 34995 + ... + 38356.

Almost surely, 2^123303031 is an apocalyptic number.

123303031 is a deficient number, since it is larger than the sum of its proper divisors (3082465).

123303031 is an frugal number, since it uses more digits than its factorization.

123303031 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 73433 (or 73392 counting only the distinct ones).

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 123303031 is about 11104.1897948477. The cubic root of 123303031 is about 497.7270577909.

Adding to 123303031 its reverse (130303321), we get a palindrome (253606352).

The spelling of 123303031 in words is "one hundred twenty-three million, three hundred three thousand, thirty-one".