130311403 has 2 divisors, whose sum is σ = 130311404. Its totient is φ = 130311402.

The previous prime is 130311361. The next prime is 130311421. The reversal of 130311403 is 304113031.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130311403 is a prime.

It is not a weakly prime, because it can be changed into another prime (130311473) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65155701 + 65155702.

It is an arithmetic number, because the mean of its divisors is an integer number (65155702).

Almost surely, 2^130311403 is an apocalyptic number.

130311403 is a deficient number, since it is larger than the sum of its proper divisors (1).

130311403 is an equidigital number, since it uses as much as digits as its factorization.

130311403 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 108, while the sum is 16.

The square root of 130311403 is about 11415.4020078138. The cubic root of 130311403 is about 506.9838676726.

Adding to 130311403 its reverse (304113031), we get a palindrome (434424434).

The spelling of 130311403 in words is "one hundred thirty million, three hundred eleven thousand, four hundred three".