111012031000 has 256 divisors, whose sum is σ = 284684400000. Its totient is φ = 40273459200.

The previous prime is 111012030937. The next prime is 111012031051. The reversal of 111012031000 is 130210111.

It is a super-2 number, since 2×111012031000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (10).

It is a congruent number.

It is an unprimeable number.

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 63 ways as a sum of consecutive naturals, for example, 222468751 + ... + 222469249.

Almost surely, 2^111012031000 is an apocalyptic number.

111012031000 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 111012031000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (142342200000).

111012031000 is an abundant number, since it is smaller than the sum of its proper divisors (173672369000).

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

111012031000 is a wasteful number, since it uses less digits than its factorization.

111012031000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 799 (or 785 counting only the distinct ones).

The product of its (nonzero) digits is 6, while the sum is 10.

Adding to 111012031000 its reverse (130210111), we get a palindrome (111142241111).

The spelling of 111012031000 in words is "one hundred eleven billion, twelve million, thirty-one thousand".