1230540000 has 120 divisors (see below), whose sum is σ = 4036614120. Its totient is φ = 328128000.

The previous prime is 1230539993. The next prime is 1230540037. The reversal of 1230540000 is 450321.

It is a tau number, because it is divible by the number of its divisors (120).

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

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 19 ways as a sum of consecutive naturals, for example, 49746 + ... + 70254.

It is an arithmetic number, because the mean of its divisors is an integer number (33638451).

Almost surely, 2^1230540000 is an apocalyptic number.

1230540000 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 1230540000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2018307060).

1230540000 is an abundant number, since it is smaller than the sum of its proper divisors (2806074120).

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

1230540000 is an equidigital number, since it uses as much as digits as its factorization.

1230540000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 20542 (or 20519 counting only the distinct ones).

The product of its (nonzero) digits is 120, while the sum is 15.

The square root of 1230540000 is about 35079.0535790235. The cubic root of 1230540000 is about 1071.5980430339.

Adding to 1230540000 its reverse (450321), we get a palindrome (1230990321).

The spelling of 1230540000 in words is "one billion, two hundred thirty million, five hundred forty thousand".