1230321030 has 64 divisors (see below), whose sum is σ = 3036773376. Its totient is φ = 318816000.

The previous prime is 1230321023. The next prime is 1230321047. The reversal of 1230321030 is 301230321.

It is a Harshad number since it is a multiple of its sum of digits (15).

It is an alternating number because its digits alternate between odd and even.

It is a Curzon number.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 31 ways as a sum of consecutive naturals, for example, 331485 + ... + 335175.

It is an arithmetic number, because the mean of its divisors is an integer number (47449584).

Almost surely, 2^1230321030 is an apocalyptic number.

1230321030 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1230321030, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1518386688).

1230321030 is an abundant number, since it is smaller than the sum of its proper divisors (1806452346).

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

1230321030 is a wasteful number, since it uses less digits than its factorization.

1230321030 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 4013.

The product of its (nonzero) digits is 108, while the sum is 15.

The square root of 1230321030 is about 35075.9323468386. The cubic root of 1230321030 is about 1071.5344769727.

Adding to 1230321030 its reverse (301230321), we get a palindrome (1531551351).

It can be divided in two parts, 12303 and 21030, that added together give a palindrome (33333).

The spelling of 1230321030 in words is "one billion, two hundred thirty million, three hundred twenty-one thousand, thirty".