1301250320 has 20 divisors (see below), whose sum is σ = 3025407180. Its totient is φ = 520500096.

The previous prime is 1301250289. The next prime is 1301250337. The reversal of 1301250320 is 230521031.

It can be written as a sum of positive squares in 2 ways, for example, as 731377936 + 569872384 = 27044^2 + 23872^2 .

It is a tau number, because it is divible by the number of its divisors (20).

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8132735 + ... + 8132894.

It is an arithmetic number, because the mean of its divisors is an integer number (151270359).

Almost surely, 2^1301250320 is an apocalyptic number.

1301250320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1301250320 is an abundant number, since it is smaller than the sum of its proper divisors (1724156860).

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

1301250320 is a wasteful number, since it uses less digits than its factorization.

1301250320 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 16265642 (or 16265636 counting only the distinct ones).

The product of its (nonzero) digits is 180, while the sum is 17.

The square root of 1301250320 is about 36072.8474063249. The cubic root of 1301250320 is about 1091.7426659079.

Adding to 1301250320 its reverse (230521031), we get a palindrome (1531771351).

The spelling of 1301250320 in words is "one billion, three hundred one million, two hundred fifty thousand, three hundred twenty".