1213231100330 has 32 divisors (see below), whose sum is σ = 2220489621504. Its totient is φ = 477210375936.

The previous prime is 1213231100329. The next prime is 1213231100377. The reversal of 1213231100330 is 330011323121.

It is a super-2 number, since 2×1213231100330² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 4083482 + ... + 4370501.

It is an arithmetic number, because the mean of its divisors is an integer number (69390300672).

Almost surely, 2^{1213231100330} is an apocalyptic number.

1213231100330 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213231100330 is a deficient number, since it is larger than the sum of its proper divisors (1007258521174).

1213231100330 is a wasteful number, since it uses less digits than its factorization.

1213231100330 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 8454230.

The product of its (nonzero) digits is 324, while the sum is 20.

Adding to 1213231100330 its reverse (330011323121), we get a palindrome (1543242423451).

The spelling of 1213231100330 in words is "one trillion, two hundred thirteen billion, two hundred thirty-one million, one hundred thousand, three hundred thirty".