231210120 has 64 divisors (see below), whose sum is σ = 695845440. Its totient is φ = 61459200.

The previous prime is 231210103. The next prime is 231210131. The reversal of 231210120 is 21012132.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a junction number, because it is equal to n+sod(n) for n = 231210096 and 231210105.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 36810 + ... + 42630.

It is an arithmetic number, because the mean of its divisors is an integer number (10872585).

Almost surely, 2^231210120 is an apocalyptic number.

231210120 is a gapful number since it is divisible by the number (20) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 231210120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (347922720).

231210120 is an abundant number, since it is smaller than the sum of its proper divisors (464635320).

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

231210120 is a wasteful number, since it uses less digits than its factorization.

231210120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 6166 (or 6162 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 12.

The square root of 231210120 is about 15205.5950228855. The cubic root of 231210120 is about 613.7652269386.

Adding to 231210120 its reverse (21012132), we get a palindrome (252222252).

The spelling of 231210120 in words is "two hundred thirty-one million, two hundred ten thousand, one hundred twenty".