1301130020 has 36 divisors (see below), whose sum is σ = 2902568340. Its totient is φ = 489835008.

The previous prime is 1301130007. The next prime is 1301130029. The reversal of 1301130020 is 200311031.

It can be written as a sum of positive squares in 6 ways, for example, as 4553956 + 1296576064 = 2134^2 + 36008^2 .

It is a junction number, because it is equal to n+sod(n) for n = 1301129983 and 1301130010.

It is not an unprimeable number, because it can be changed into a prime (1301130029) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 106775 + ... + 118334.

Almost surely, 2^1301130020 is an apocalyptic number.

1301130020 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301130020 is an abundant number, since it is smaller than the sum of its proper divisors (1601438320).

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

1301130020 is a wasteful number, since it uses less digits than its factorization.

1301130020 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 225152 (or 225133 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 1301130020 is about 36071.1799086196. The cubic root of 1301130020 is about 1091.7090211668.

Adding to 1301130020 its reverse (200311031), we get a palindrome (1501441051).

The spelling of 1301130020 in words is "one billion, three hundred one million, one hundred thirty thousand, twenty".