231450220130 has 8 divisors (see below), whose sum is σ = 416610396252. Its totient is φ = 92580088048.

The previous prime is 231450220129. The next prime is 231450220151. The reversal of 231450220130 is 31022054132.

It can be written as a sum of positive squares in 2 ways, for example, as 225882523441 + 5567696689 = 475271^2 + 74617^2 .

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 = 231450220096 and 231450220105.

It is an unprimeable number.

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 in 3 ways as a sum of consecutive naturals, for example, 11572510997 + ... + 11572511016.

Almost surely, 2^231450220130 is an apocalyptic number.

231450220130 is a deficient number, since it is larger than the sum of its proper divisors (185160176122).

231450220130 is a wasteful number, since it uses less digits than its factorization.

231450220130 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 23145022020.

The product of its (nonzero) digits is 1440, while the sum is 23.

Adding to 231450220130 its reverse (31022054132), we get a palindrome (262472274262).

The spelling of 231450220130 in words is "two hundred thirty-one billion, four hundred fifty million, two hundred twenty thousand, one hundred thirty".