1230211120 has 160 divisors (see below), whose sum is σ = 3212794368. Its totient is φ = 435646464.

The previous prime is 1230211067. The next prime is 1230211121. The reversal of 1230211120 is 211120321.

It is a self number, because there is not a number n which added to its sum of digits gives 1230211120.

It is not an unprimeable number, because it can be changed into a prime (1230211121) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 2095467 + ... + 2096053.

Almost surely, 2^1230211120 is an apocalyptic number.

1230211120 is a gapful number since it is divisible by the number (10) 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 1230211120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1606397184).

1230211120 is an abundant number, since it is smaller than the sum of its proper divisors (1982583248).

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

1230211120 is a wasteful number, since it uses less digits than its factorization.

1230211120 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 707 (or 701 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 1230211120 is about 35074.3655680327. The cubic root of 1230211120 is about 1071.5025677233.

Adding to 1230211120 its reverse (211120321), we get a palindrome (1441331441).

The spelling of 1230211120 in words is "one billion, two hundred thirty million, two hundred eleven thousand, one hundred twenty".