111321320103000 has 384 divisors, whose sum is σ = 430085300711040. Its totient is φ = 25440912000000.

The previous prime is 111321320102987. The next prime is 111321320103061. The reversal of 111321320103000 is 301023123111.

111321320103000 is a `hidden beast` number, since 1 + 1 + 1 + 32 + 1 + 320 + 10 + 300 + 0 = 666.

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

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, 414468750 + ... + 414737250.

It is an arithmetic number, because the mean of its divisors is an integer number (1120013803935).

Almost surely, 2^{111321320103000} is an apocalyptic number.

111321320103000 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 111321320103000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (215042650355520).

111321320103000 is an abundant number, since it is smaller than the sum of its proper divisors (318763980608040).

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

111321320103000 is a wasteful number, since it uses less digits than its factorization.

111321320103000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 275116 (or 275099 counting only the distinct ones).

The product of its (nonzero) digits is 108, while the sum is 18.

Adding to 111321320103000 its reverse (301023123111), we get a palindrome (111622343226111).

The spelling of 111321320103000 in words is "one hundred eleven trillion, three hundred twenty-one billion, three hundred twenty million, one hundred three thousand".