1213133123230 has 16 divisors (see below), whose sum is σ = 2495588139360. Its totient is φ = 415931356512.

The previous prime is 1213133123219. The next prime is 1213133123239. The reversal of 1213133123230 is 323213313121.

It is a junction number, because it is equal to n+sod(n) for n = 1213133123195 and 1213133123204.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213133123239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 8665236525 + ... + 8665236664.

It is an arithmetic number, because the mean of its divisors is an integer number (155974258710).

Almost surely, 2^{1213133123230} is an apocalyptic number.

1213133123230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213133123230 is an abundant number, since it is smaller than the sum of its proper divisors (1282455016130).

1213133123230 is a wasteful number, since it uses less digits than its factorization.

1213133123230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 17330473203.

The product of its (nonzero) digits is 1944, while the sum is 25.

Adding to 1213133123230 its reverse (323213313121), we get a palindrome (1536346436351).

The spelling of 1213133123230 in words is "one trillion, two hundred thirteen billion, one hundred thirty-three million, one hundred twenty-three thousand, two hundred thirty".