1351305320 has 32 divisors (see below), whose sum is σ = 3091975200. Its totient is φ = 531359808.

The previous prime is 1351305317. The next prime is 1351305323. The reversal of 1351305320 is 235031531.

It is an interprime number because it is at equal distance from previous prime (1351305317) and next prime (1351305323).

It is not an unprimeable number, because it can be changed into a prime (1351305323) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 283934 + ... + 288653.

It is an arithmetic number, because the mean of its divisors is an integer number (96624225).

Almost surely, 2^1351305320 is an apocalyptic number.

1351305320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1351305320 is an abundant number, since it is smaller than the sum of its proper divisors (1740669880).

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

1351305320 is a wasteful number, since it uses less digits than its factorization.

1351305320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 572657 (or 572653 counting only the distinct ones).

The product of its (nonzero) digits is 1350, while the sum is 23.

The square root of 1351305320 is about 36760.1050052907. The cubic root of 1351305320 is about 1105.5655452168.

Adding to 1351305320 its reverse (235031531), we get a palindrome (1586336851).

The spelling of 1351305320 in words is "one billion, three hundred fifty-one million, three hundred five thousand, three hundred twenty".