1111122031230 has 192 divisors, whose sum is σ = 2958055184448. Its totient is φ = 289318348800.

The previous prime is 1111122031223. The next prime is 1111122031237. The reversal of 1111122031230 is 321302211111.

It is an interprime number because it is at equal distance from previous prime (1111122031223) and next prime (1111122031237).

It is a Harshad number since it is a multiple of its sum of digits (18).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1111122031237) by changing a digit.

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 95 ways as a sum of consecutive naturals, for example, 195513969 + ... + 195519651.

It is an arithmetic number, because the mean of its divisors is an integer number (15406537419).

Almost surely, 2^{1111122031230} is an apocalyptic number.

1111122031230 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is a practical number, because each smaller number is the sum of distinct divisors of 1111122031230, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1479027592224).

1111122031230 is an abundant number, since it is smaller than the sum of its proper divisors (1846933153218).

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

1111122031230 is a wasteful number, since it uses less digits than its factorization.

1111122031230 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6091 (or 6088 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 18.

Adding to 1111122031230 its reverse (321302211111), we get a palindrome (1432424242341).

The spelling of 1111122031230 in words is "one trillion, one hundred eleven billion, one hundred twenty-two million, thirty-one thousand, two hundred thirty".