1230142120 has 64 divisors (see below), whose sum is σ = 2893968000. Its totient is φ = 469717248.

The previous prime is 1230142057. The next prime is 1230142157. The reversal of 1230142120 is 212410321.

It is a junction number, because it is equal to n+sod(n) for n = 1230142094 and 1230142103.

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, 605266 + ... + 607294.

It is an arithmetic number, because the mean of its divisors is an integer number (45218250).

Almost surely, 2^1230142120 is an apocalyptic number.

1230142120 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 1230142120, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1446984000).

1230142120 is an abundant number, since it is smaller than the sum of its proper divisors (1663825880).

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

1230142120 is a wasteful number, since it uses less digits than its factorization.

1230142120 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2722 (or 2718 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

The square root of 1230142120 is about 35073.3819298909. The cubic root of 1230142120 is about 1071.4825345604.

Adding to 1230142120 its reverse (212410321), we get a palindrome (1442552441).

The spelling of 1230142120 in words is "one billion, two hundred thirty million, one hundred forty-two thousand, one hundred twenty".