130203431 has 2 divisors, whose sum is σ = 130203432. Its totient is φ = 130203430.

The previous prime is 130203373. The next prime is 130203439. The reversal of 130203431 is 134302031.

It is a happy number.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 130203431 - 2¹⁰ = 130202407 is a prime.

It is a super-2 number, since 2×130203431² = 33905866888343522, which contains 22 as substring.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (130203439) 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 as a sum of consecutive naturals, namely, 65101715 + 65101716.

It is an arithmetic number, because the mean of its divisors is an integer number (65101716).

Almost surely, 2^130203431 is an apocalyptic number.

130203431 is a deficient number, since it is larger than the sum of its proper divisors (1).

130203431 is an equidigital number, since it uses as much as digits as its factorization.

130203431 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 130203431 is about 11410.6718031849. The cubic root of 130203431 is about 506.8438052619.

Adding to 130203431 its reverse (134302031), we get a palindrome (264505462).

The spelling of 130203431 in words is "one hundred thirty million, two hundred three thousand, four hundred thirty-one".