231220230130 has 8 divisors (see below), whose sum is σ = 416196414252. Its totient is φ = 92488092048.

The previous prime is 231220230121. The next prime is 231220230139. The reversal of 231220230130 is 31032022132.

231220230130 is digitally balanced in base 3, because in such base it contains all the possibile digits an equal number of times.

It is an interprime number because it is at equal distance from previous prime (231220230121) and next prime (231220230139).

It can be written as a sum of positive squares in 2 ways, for example, as 231219607609 + 622521 = 480853^2 + 789^2 .

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 231220230098 and 231220230107.

It is not an unprimeable number, because it can be changed into a prime (231220230139) 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, 11561011497 + ... + 11561011516.

Almost surely, 2^231220230130 is an apocalyptic number.

231220230130 is a deficient number, since it is larger than the sum of its proper divisors (184976184122).

231220230130 is a wasteful number, since it uses less digits than its factorization.

231220230130 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 23122023020.

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

Adding to 231220230130 its reverse (31032022132), we get a palindrome (262252252262).

The spelling of 231220230130 in words is "two hundred thirty-one billion, two hundred twenty million, two hundred thirty thousand, one hundred thirty".