1230133320 has 384 divisors, whose sum is σ = 4549708800. Its totient is φ = 286156800.

The previous prime is 1230133313. The next prime is 1230133337. The reversal of 1230133320 is 233310321.

1230133320 is a `hidden beast` number, since 12 + 301 + 33 + 320 = 666.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a junction number, because it is equal to n+sod(n) for n = 1230133293 and 1230133302.

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 95 ways as a sum of consecutive naturals, for example, 8849811 + ... + 8849949.

It is an arithmetic number, because the mean of its divisors is an integer number (11848200).

Almost surely, 2^1230133320 is an apocalyptic number.

1230133320 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 1230133320, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2274854400).

1230133320 is an abundant number, since it is smaller than the sum of its proper divisors (3319575480).

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

1230133320 is a wasteful number, since it uses less digits than its factorization.

1230133320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 261 (or 254 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 1230133320 is about 35073.2564784053. The cubic root of 1230133320 is about 1071.4799795524.

Adding to 1230133320 its reverse (233310321), we get a palindrome (1463443641).

The spelling of 1230133320 in words is "one billion, two hundred thirty million, one hundred thirty-three thousand, three hundred twenty".