1320117530 has 32 divisors (see below), whose sum is σ = 2524262400. Its totient is φ = 495657792.

The previous prime is 1320117517. The next prime is 1320117551. The reversal of 1320117530 is 357110231.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1320117496 and 1320117505.

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, 11162 + ... + 52581.

It is an arithmetic number, because the mean of its divisors is an integer number (78883200).

Almost surely, 2^1320117530 is an apocalyptic number.

1320117530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1320117530 is a deficient number, since it is larger than the sum of its proper divisors (1204144870).

1320117530 is a wasteful number, since it uses less digits than its factorization.

1320117530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 63878.

The product of its (nonzero) digits is 630, while the sum is 23.

The square root of 1320117530 is about 36333.4216665593. The cubic root of 1320117530 is about 1096.9938665564.

Adding to 1320117530 its reverse (357110231), we get a palindrome (1677227761).

The spelling of 1320117530 in words is "one billion, three hundred twenty million, one hundred seventeen thousand, five hundred thirty".