130303231 has 4 divisors (see below), whose sum is σ = 131593464. Its totient is φ = 129013000.

The previous prime is 130303213. The next prime is 130303237. The reversal of 130303231 is 132303031.

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

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-130303231 is a prime.

It is a super-2 number, since 2×130303231² = 33957864018078722, 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 (130303237) 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, 644965 + ... + 645166.

It is an arithmetic number, because the mean of its divisors is an integer number (32898366).

Almost surely, 2^130303231 is an apocalyptic number.

130303231 is a deficient number, since it is larger than the sum of its proper divisors (1290233).

130303231 is a wasteful number, since it uses less digits than its factorization.

130303231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1290232.

The product of its (nonzero) digits is 162, while the sum is 16.

The square root of 130303231 is about 11415.0440647419. The cubic root of 130303231 is about 506.9732695754.

Adding to 130303231 its reverse (132303031), we get a palindrome (262606262).

It can be divided in two parts, 13030 and 3231, that added together give a palindrome (16261).

The spelling of 130303231 in words is "one hundred thirty million, three hundred three thousand, two hundred thirty-one".