1307120530 has 16 divisors (see below), whose sum is σ = 2366420184. Its totient is φ = 519825280.

The previous prime is 1307120473. The next prime is 1307120537. The reversal of 1307120530 is 350217031.

It can be written as a sum of positive squares in 4 ways, for example, as 1279421361 + 27699169 = 35769^2 + 5263^2 .

It is not an unprimeable number, because it can be changed into a prime (1307120537) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 376051 + ... + 379510.

Almost surely, 2^1307120530 is an apocalyptic number.

1307120530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1307120530 is a deficient number, since it is larger than the sum of its proper divisors (1059299654).

1307120530 is a wasteful number, since it uses less digits than its factorization.

1307120530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 755741.

The product of its (nonzero) digits is 630, while the sum is 22.

The square root of 1307120530 is about 36154.1218950205. The cubic root of 1307120530 is about 1093.3818959154.

Adding to 1307120530 its reverse (350217031), we get a palindrome (1657337561).

The spelling of 1307120530 in words is "one billion, three hundred seven million, one hundred twenty thousand, five hundred thirty".