103012112 has 120 divisors (see below), whose sum is σ = 251903520. Its totient is φ = 40535040.

The previous prime is 103012097. The next prime is 103012121. The reversal of 103012112 is 211210301.

It is a super-2 number, since 2×103012112² = 21222990437401088, which contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 103012093 and 103012102.

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 786287 + ... + 786417.

It is an arithmetic number, because the mean of its divisors is an integer number (2099196).

Almost surely, 2^103012112 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 103012112, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (125951760).

103012112 is an abundant number, since it is smaller than the sum of its proper divisors (148891408).

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

103012112 is a wasteful number, since it uses less digits than its factorization.

103012112 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 229 (or 216 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 11.

The square root of 103012112 is about 10149.4882629618. The cubic root of 103012112 is about 468.7731880203.

Adding to 103012112 its reverse (211210301), we get a palindrome (314222413).

It can be divided in two parts, 10301 and 2112, that multiplied together give a palindrome (21755712).

The spelling of 103012112 in words is "one hundred three million, twelve thousand, one hundred twelve".