1213132330 has 16 divisors (see below), whose sum is σ = 2298566880. Its totient is φ = 459713232.

The previous prime is 1213132301. The next prime is 1213132337. The reversal of 1213132330 is 332313121.

It is a Harshad number since it is a multiple of its sum of digits (19).

It is a junction number, because it is equal to n+sod(n) for n = 1213132298 and 1213132307.

It is not an unprimeable number, because it can be changed into a prime (1213132337) 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, 3192264 + ... + 3192643.

It is an arithmetic number, because the mean of its divisors is an integer number (143660430).

Almost surely, 2^1213132330 is an apocalyptic number.

1213132330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213132330 is a deficient number, since it is larger than the sum of its proper divisors (1085434550).

1213132330 is a wasteful number, since it uses less digits than its factorization.

1213132330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6384933.

The product of its (nonzero) digits is 324, while the sum is 19.

The square root of 1213132330 is about 34830.0492391268. The cubic root of 1213132330 is about 1066.5209535114.

Adding to 1213132330 its reverse (332313121), we get a palindrome (1545445451).

The spelling of 1213132330 in words is "one billion, two hundred thirteen million, one hundred thirty-two thousand, three hundred thirty".