130123403 has 2 divisors, whose sum is σ = 130123404. Its totient is φ = 130123402.

The previous prime is 130123393. The next prime is 130123417. The reversal of 130123403 is 304321031.

It is a happy number.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130123403 is a prime.

It is a Sophie Germain prime.

It is a Chen prime.

It is not a weakly prime, because it can be changed into another prime (130123453) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65061701 + 65061702.

It is an arithmetic number, because the mean of its divisors is an integer number (65061702).

Almost surely, 2^130123403 is an apocalyptic number.

130123403 is a deficient number, since it is larger than the sum of its proper divisors (1).

130123403 is an equidigital number, since it uses as much as digits as its factorization.

130123403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 216, while the sum is 17.

The square root of 130123403 is about 11407.1645468977. The cubic root of 130123403 is about 506.7399421280.

Adding to 130123403 its reverse (304321031), we get a palindrome (434444434).

The spelling of 130123403 in words is "one hundred thirty million, one hundred twenty-three thousand, four hundred three".