103212112 has 10 divisors (see below), whose sum is σ = 199973498. Its totient is φ = 51606048.

The previous prime is 103212103. The next prime is 103212163. The reversal of 103212112 is 211212301.

It can be written as a sum of positive squares in only one way, i.e., 92083216 + 11128896 = 9596^2 + 3336^2 .

It is a junction number, because it is equal to n+sod(n) for n = 103212092 and 103212101.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 3225363 + ... + 3225394.

Almost surely, 2^103212112 is an apocalyptic number.

It is an amenable number.

103212112 is a deficient number, since it is larger than the sum of its proper divisors (96761386).

103212112 is an equidigital number, since it uses as much as digits as its factorization.

103212112 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6450765 (or 6450759 counting only the distinct ones).

The product of its (nonzero) digits is 24, while the sum is 13.

The square root of 103212112 is about 10159.3361987878. The cubic root of 103212112 is about 469.0763692860.

Adding to 103212112 its reverse (211212301), we get a palindrome (314424413).

The spelling of 103212112 in words is "one hundred three million, two hundred twelve thousand, one hundred twelve".