130202431 has 4 divisors (see below), whose sum is σ = 134692200. Its totient is φ = 125712664.

The previous prime is 130202417. The next prime is 130202437. The reversal of 130202431 is 134202031.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 130202431 - 2⁵ = 130202399 is a prime.

It is a super-2 number, since 2×130202431² = 33905346076619522, which contains 22 as substring.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130202437) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2244841 + ... + 2244898.

It is an arithmetic number, because the mean of its divisors is an integer number (33673050).

Almost surely, 2^130202431 is an apocalyptic number.

130202431 is a deficient number, since it is larger than the sum of its proper divisors (4489769).

130202431 is an equidigital number, since it uses as much as digits as its factorization.

130202431 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4489768.

The product of its (nonzero) digits is 144, while the sum is 16.

The square root of 130202431 is about 11410.6279844713. The cubic root of 130202431 is about 506.8425076896.

Adding to 130202431 its reverse (134202031), we get a palindrome (264404462).

It can be divided in two parts, 13020 and 2431, that added together give a palindrome (15451).

The spelling of 130202431 in words is "one hundred thirty million, two hundred two thousand, four hundred thirty-one".