1230109312 has 32 divisors (see below), whose sum is σ = 2457966420. Its totient is φ = 613208064.

The previous prime is 1230109291. The next prime is 1230109313. The reversal of 1230109312 is 2139010321.

It can be written as a sum of positive squares in 2 ways, for example, as 1220524096 + 9585216 = 34936^2 + 3096^2 .

It is a tau number, because it is divible by the number of its divisors (32).

It is a super-2 number, since 2×1230109312² = 3026337838938226688, which contains 22 as substring.

It is not an unprimeable number, because it can be changed into a prime (1230109313) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 28878 + ... + 57394.

Almost surely, 2^1230109312 is an apocalyptic number.

It is an amenable number.

1230109312 is a deficient number, since it is larger than the sum of its proper divisors (1227857108).

1230109312 is an equidigital number, since it uses as much as digits as its factorization.

1230109312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 28868 (or 28856 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 22.

The square root of 1230109312 is about 35072.9142216611. The cubic root of 1230109312 is about 1071.4730089641.

Adding to 1230109312 its reverse (2139010321), we get a palindrome (3369119633).

The spelling of 1230109312 in words is "one billion, two hundred thirty million, one hundred nine thousand, three hundred twelve".