1213111233230 has 32 divisors (see below), whose sum is σ = 2351633485824. Its totient is φ = 447905799936.

The previous prime is 1213111233199. The next prime is 1213111233239. The reversal of 1213111233230 is 323321113121.

It is a super-2 number, since 2×1213111233230² (a number of 25 digits) contains 22 as substring.

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1213111233196 and 1213111233205.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1213111233239) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5685842 + ... + 5895338.

It is an arithmetic number, because the mean of its divisors is an integer number (73488546432).

Almost surely, 2^{1213111233230} is an apocalyptic number.

1213111233230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1213111233230 is a deficient number, since it is larger than the sum of its proper divisors (1138522252594).

1213111233230 is a wasteful number, since it uses less digits than its factorization.

1213111233230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 254060.

The product of its (nonzero) digits is 648, while the sum is 23.

Adding to 1213111233230 its reverse (323321113121), we get a palindrome (1536432346351).

The spelling of 1213111233230 in words is "one trillion, two hundred thirteen billion, one hundred eleven million, two hundred thirty-three thousand, two hundred thirty".