1301145320 has 64 divisors (see below), whose sum is σ = 3206725200. Its totient is φ = 472944640.

The previous prime is 1301145257. The next prime is 1301145343. The reversal of 1301145320 is 235411031.

It can be written as a sum of positive squares in 8 ways, for example, as 962364484 + 338780836 = 31022^2 + 18406^2 .

It is a Harshad number since it is a multiple of its sum of digits (20).

It is a junction number, because it is equal to n+sod(n) for n = 1301145292 and 1301145301.

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 15 ways as a sum of consecutive naturals, for example, 13271 + ... + 52710.

Almost surely, 2^1301145320 is an apocalyptic number.

1301145320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301145320 is an abundant number, since it is smaller than the sum of its proper divisors (1905579880).

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

1301145320 is a wasteful number, since it uses less digits than its factorization.

1301145320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 66038 (or 66034 counting only the distinct ones).

The product of its (nonzero) digits is 360, while the sum is 20.

The square root of 1301145320 is about 36071.3919886660. The cubic root of 1301145320 is about 1091.7133002889.

Adding to 1301145320 its reverse (235411031), we get a palindrome (1536556351).

The spelling of 1301145320 in words is "one billion, three hundred one million, one hundred forty-five thousand, three hundred twenty".