231016120 has 16 divisors (see below), whose sum is σ = 519786360. Its totient is φ = 92406432.

The previous prime is 231016109. The next prime is 231016127. The reversal of 231016120 is 21610132.

It is a junction number, because it is equal to n+sod(n) for n = 231016094 and 231016103.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (231016127) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 2887662 + ... + 2887741.

Almost surely, 2^231016120 is an apocalyptic number.

231016120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

231016120 is an abundant number, since it is smaller than the sum of its proper divisors (288770240).

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

231016120 is a wasteful number, since it uses less digits than its factorization.

231016120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5775414 (or 5775410 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 16.

The square root of 231016120 is about 15199.2144533854. The cubic root of 231016120 is about 613.5935162135.

Adding to 231016120 its reverse (21610132), we get a palindrome (252626252).

The spelling of 231016120 in words is "two hundred thirty-one million, sixteen thousand, one hundred twenty".