1213230121230 has 32 divisors (see below), whose sum is σ = 2930298495264. Its totient is φ = 321467342976.

The previous prime is 1213230121217. The next prime is 1213230121303. The reversal of 1213230121230 is 321210323121.

It is a junction number, because it is equal to n+sod(n) for n = 1213230121197 and 1213230121206.

It is a congruent number.

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, 128788297 + ... + 128797716.

It is an arithmetic number, because the mean of its divisors is an integer number (91571827977).

Almost surely, 2^{1213230121230} is an apocalyptic number.

1213230121230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213230121230 is an abundant number, since it is smaller than the sum of its proper divisors (1717068374034).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

1213230121230 is a wasteful number, since it uses less digits than its factorization.

1213230121230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 257586180.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1213230121230 its reverse (321210323121), we get a palindrome (1534440444351).

The spelling of 1213230121230 in words is "one trillion, two hundred thirteen billion, two hundred thirty million, one hundred twenty-one thousand, two hundred thirty".