1111212311230 has 96 divisors (see below), whose sum is σ = 2371028215680. Its totient is φ = 373762105920.

The previous prime is 1111212311221. The next prime is 1111212311257. The reversal of 1111212311230 is 321132121111.

It is a super-2 number, since 2×1111212311230² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1111212311198 and 1111212311207.

It is a congruent number.

It is an unprimeable number.

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 47 ways as a sum of consecutive naturals, for example, 14155669 + ... + 14233951.

It is an arithmetic number, because the mean of its divisors is an integer number (24698210580).

Almost surely, 2^{1111212311230} is an apocalyptic number.

1111212311230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

1111212311230 is an abundant number, since it is smaller than the sum of its proper divisors (1259815904450).

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

1111212311230 is a wasteful number, since it uses less digits than its factorization.

1111212311230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 78854 (or 78847 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 19.

Adding to 1111212311230 its reverse (321132121111), we get a palindrome (1432344432341).

The spelling of 1111212311230 in words is "one trillion, one hundred eleven billion, two hundred twelve million, three hundred eleven thousand, two hundred thirty".