1230328993920 has 512 divisors, whose sum is σ = 4522156128000. Its totient is φ = 281824198656.

The previous prime is 1230328993879. The next prime is 1230328993969. The reversal of 1230328993920 is 293998230321.

It is a Harshad number since it is a multiple of its sum of digits (51).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 37748191 + ... + 37780769.

Almost surely, 2^{1230328993920} is an apocalyptic number.

1230328993920 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 1230328993920, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2261078064000).

1230328993920 is an abundant number, since it is smaller than the sum of its proper divisors (3291827134080).

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

1230328993920 is a wasteful number, since it uses less digits than its factorization.

1230328993920 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 32720 (or 32708 counting only the distinct ones).

The product of its (nonzero) digits is 1259712, while the sum is 51.

The spelling of 1230328993920 in words is "one trillion, two hundred thirty billion, three hundred twenty-eight million, nine hundred ninety-three thousand, nine hundred twenty".