1230120120 has 64 divisors (see below), whose sum is σ = 3713922720. Its totient is φ = 325937664.

The previous prime is 1230120113. The next prime is 1230120131. The reversal of 1230120120 is 210210321.

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 = 1230120096 and 1230120105.

It is a congruent number.

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, 13807 + ... + 51486.

Almost surely, 2^1230120120 is an apocalyptic number.

1230120120 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1230120120 is an abundant number, since it is smaller than the sum of its proper divisors (2483802600).

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

1230120120 is a wasteful number, since it uses less digits than its factorization.

1230120120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65464 (or 65460 counting only the distinct ones).

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

The square root of 1230120120 is about 35073.0683003355. The cubic root of 1230120120 is about 1071.4761470176.

Adding to 1230120120 its reverse (210210321), we get a palindrome (1440330441).

The spelling of 1230120120 in words is "one billion, two hundred thirty million, one hundred twenty thousand, one hundred twenty".