231430120 has 32 divisors (see below), whose sum is σ = 521373600. Its totient is φ = 92455488.

The previous prime is 231430099. The next prime is 231430123. The reversal of 231430120 is 21034132.

It is a happy number.

It is a super-3 number, since 3×231430120³ (a number of 26 digits) contains 333 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 231430094 and 231430103.

It is not an unprimeable number, because it can be changed into a prime (231430123) by changing a digit.

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 7 ways as a sum of consecutive naturals, for example, 33091 + ... + 39469.

It is an arithmetic number, because the mean of its divisors is an integer number (16292925).

Almost surely, 2^231430120 is an apocalyptic number.

231430120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231430120 is an abundant number, since it is smaller than the sum of its proper divisors (289943480).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

231430120 is a wasteful number, since it uses less digits than its factorization.

231430120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 7297 (or 7293 counting only the distinct ones).

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

The square root of 231430120 is about 15212.8274820955. The cubic root of 231430120 is about 613.9598342585.

Adding to 231430120 its reverse (21034132), we get a palindrome (252464252).

The spelling of 231430120 in words is "two hundred thirty-one million, four hundred thirty thousand, one hundred twenty".