103019112 has 96 divisors (see below), whose sum is σ = 325728000. Its totient is φ = 28801152.

The previous prime is 103019071. The next prime is 103019123. The reversal of 103019112 is 211910301.

It is a super-2 number, since 2×103019112² = 21225874874537088, which contains 22 as substring.

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

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (13) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 21514 + ... + 25862.

It is an arithmetic number, because the mean of its divisors is an integer number (3393000).

Almost surely, 2^103019112 is an apocalyptic number.

103019112 is a gapful number since it is divisible by the number (12) 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 103019112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (162864000).

103019112 is an abundant number, since it is smaller than the sum of its proper divisors (222708888).

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

103019112 is a wasteful number, since it uses less digits than its factorization.

103019112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 4415 (or 4408 counting only the distinct ones).

The product of its (nonzero) digits is 54, while the sum is 18.

The square root of 103019112 is about 10149.8331020761. The cubic root of 103019112 is about 468.7838059885.

Adding to 103019112 its reverse (211910301), we get a palindrome (314929413).

The spelling of 103019112 in words is "one hundred three million, nineteen thousand, one hundred twelve".