1223111203230 has 32 divisors (see below), whose sum is σ = 3354819300864. Its totient is φ = 279568274976.

The previous prime is 1223111203157. The next prime is 1223111203243. The reversal of 1223111203230 is 323021113221.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a Curzon number.

It is a junction number, because it is equal to n+sod(n) for n = 1223111203197 and 1223111203206.

It is a congruent number.

It is an unprimeable number.

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 15 ways as a sum of consecutive naturals, for example, 2912169322 + ... + 2912169741.

It is an arithmetic number, because the mean of its divisors is an integer number (104838103152).

Almost surely, 2^{1223111203230} is an apocalyptic number.

1223111203230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1223111203230 is an abundant number, since it is smaller than the sum of its proper divisors (2131708097634).

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

1223111203230 is a wasteful number, since it uses less digits than its factorization.

1223111203230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5824339080.

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

Adding to 1223111203230 its reverse (323021113221), we get a palindrome (1546132316451).

Subtracting from 1223111203230 its reverse (323021113221), we obtain a palindrome (900090090009).

The spelling of 1223111203230 in words is "one trillion, two hundred twenty-three billion, one hundred eleven million, two hundred three thousand, two hundred thirty".