123031303 has 2 divisors, whose sum is σ = 123031304. Its totient is φ = 123031302.

The previous prime is 123031291. The next prime is 123031331. The reversal of 123031303 is 303130321.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-123031303 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (123031373) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 61515651 + 61515652.

It is an arithmetic number, because the mean of its divisors is an integer number (61515652).

Almost surely, 2^123031303 is an apocalyptic number.

123031303 is a deficient number, since it is larger than the sum of its proper divisors (1).

123031303 is an equidigital number, since it uses as much as digits as its factorization.

123031303 is an odious number, because the sum of its binary digits is odd.

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

The square root of 123031303 is about 11091.9476648603. The cubic root of 123031303 is about 497.3611683016.

Adding to 123031303 its reverse (303130321), we get a palindrome (426161624).

The spelling of 123031303 in words is "one hundred twenty-three million, thirty-one thousand, three hundred three".