1213350530 has 32 divisors (see below), whose sum is σ = 2498252544. Its totient is φ = 415636416.

The previous prime is 1213350521. The next prime is 1213350539. The reversal of 1213350530 is 350533121.

It is an interprime number because it is at equal distance from previous prime (1213350521) and next prime (1213350539).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1213350496 and 1213350505.

It is not an unprimeable number, because it can be changed into a prime (1213350539) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 78524 + ... + 92696.

It is an arithmetic number, because the mean of its divisors is an integer number (78070392).

Almost surely, 2^1213350530 is an apocalyptic number.

1213350530 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213350530 is an abundant number, since it is smaller than the sum of its proper divisors (1284902014).

1213350530 is a wasteful number, since it uses less digits than its factorization.

1213350530 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 15410.

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

The square root of 1213350530 is about 34833.1814510245. The cubic root of 1213350530 is about 1066.5848929282.

Adding to 1213350530 its reverse (350533121), we get a palindrome (1563883651).

The spelling of 1213350530 in words is "one billion, two hundred thirteen million, three hundred fifty thousand, five hundred thirty".