1230020112 has 20 divisors (see below), whose sum is σ = 3177552080. Its totient is φ = 410006688.

The previous prime is 1230020107. The next prime is 1230020147. The reversal of 1230020112 is 2110200321.

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

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 12812662 + ... + 12812757.

It is an arithmetic number, because the mean of its divisors is an integer number (158877604).

Almost surely, 2^1230020112 is an apocalyptic number.

1230020112 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1230020112 is an abundant number, since it is smaller than the sum of its proper divisors (1947531968).

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

1230020112 is a wasteful number, since it uses less digits than its factorization.

1230020112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 25625430 (or 25625424 counting only the distinct ones).

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

The square root of 1230020112 is about 35071.6425620472. The cubic root of 1230020112 is about 1071.4471094494.

Adding to 1230020112 its reverse (2110200321), we get a palindrome (3340220433).

The spelling of 1230020112 in words is "one billion, two hundred thirty million, twenty thousand, one hundred twelve".