130431403 has 2 divisors, whose sum is σ = 130431404. Its totient is φ = 130431402.

The previous prime is 130431391. The next prime is 130431407. The reversal of 130431403 is 304134031.

It is a strong prime.

It is an emirp because it is prime and its reverse (304134031) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 130431403 - 2⁹ = 130430891 is a prime.

It is not a weakly prime, because it can be changed into another prime (130431407) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 65215701 + 65215702.

It is an arithmetic number, because the mean of its divisors is an integer number (65215702).

Almost surely, 2^130431403 is an apocalyptic number.

130431403 is a deficient number, since it is larger than the sum of its proper divisors (1).

130431403 is an equidigital number, since it uses as much as digits as its factorization.

130431403 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 130431403 is about 11420.6568550150. The cubic root of 130431403 is about 507.1394421852.

Adding to 130431403 its reverse (304134031), we get a palindrome (434565434).

The spelling of 130431403 in words is "one hundred thirty million, four hundred thirty-one thousand, four hundred three".