1300120000 has 70 divisors (see below), whose sum is σ = 3223974248. Its totient is φ = 520032000.

The previous prime is 1300119971. The next prime is 1300120009. The reversal of 1300120000 is 210031.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1300120009) by changing a digit.

It is a polite number, since it can be written in 9 ways as a sum of consecutive naturals, for example, 23749 + ... + 56251.

Almost surely, 2^1300120000 is an apocalyptic number.

1300120000 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 1300120000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1611987124).

1300120000 is an abundant number, since it is smaller than the sum of its proper divisors (1923854248).

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

1300120000 is an frugal number, since it uses more digits than its factorization.

1300120000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 32535 (or 32510 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 7.

The square root of 1300120000 is about 36057.1768168280. The cubic root of 1300120000 is about 1091.4264633474.

Adding to 1300120000 its reverse (210031), we get a palindrome (1300330031).

The spelling of 1300120000 in words is "one billion, three hundred million, one hundred twenty thousand".