111231323000 has 384 divisors, whose sum is σ = 325534697280. Its totient is φ = 35339673600.

The previous prime is 111231322987. The next prime is 111231323023. The reversal of 111231323000 is 323132111.

It is a Harshad number since it is a multiple of its sum of digits (17).

It is a self number, because there is not a number n which added to its sum of digits gives 111231323000.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 95 ways as a sum of consecutive naturals, for example, 55810004 + ... + 55811996.

Almost surely, 2^111231323000 is an apocalyptic number.

111231323000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 111231323000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162767348640).

111231323000 is an abundant number, since it is smaller than the sum of its proper divisors (214303374280).

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

111231323000 is a wasteful number, since it uses less digits than its factorization.

111231323000 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2112 (or 2091 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 17.

Adding to 111231323000 its reverse (323132111), we get a palindrome (111554455111).

The spelling of 111231323000 in words is "one hundred eleven billion, two hundred thirty-one million, three hundred twenty-three thousand".