130020231 has 32 divisors (see below), whose sum is σ = 196761600. Its totient is φ = 75657600.

The previous prime is 130020221. The next prime is 130020263. The reversal of 130020231 is 132020031.

It is a happy number.

It is not a de Polignac number, because 130020231 - 2⁶ = 130020167 is a prime.

It is a super-2 number, since 2×130020231² = 33810520938586722, which contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (130020221) by changing a digit.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 152001 + ... + 152853.

It is an arithmetic number, because the mean of its divisors is an integer number (6148800).

Almost surely, 2^130020231 is an apocalyptic number.

130020231 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

130020231 is a deficient number, since it is larger than the sum of its proper divisors (66741369).

130020231 is a wasteful number, since it uses less digits than its factorization.

130020231 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1047.

The product of its (nonzero) digits is 36, while the sum is 12.

The square root of 130020231 is about 11402.6414045168. The cubic root of 130020231 is about 506.6059790443.

Adding to 130020231 its reverse (132020031), we get a palindrome (262040262).

The spelling of 130020231 in words is "one hundred thirty million, twenty thousand, two hundred thirty-one".