10103312 has 10 divisors (see below), whose sum is σ = 19575198. Its totient is φ = 5051648.

The previous prime is 10103311. The next prime is 10103351. The reversal of 10103312 is 21330101.

It can be written as a sum of positive squares in only one way, i.e., 10010896 + 92416 = 3164^2 + 304^2 .

It is a junction number, because it is equal to n+sod(n) for n = 10103293 and 10103302.

It is not an unprimeable number, because it can be changed into a prime (10103311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 315713 + ... + 315744.

Almost surely, 2^10103312 is an apocalyptic number.

It is an amenable number.

10103312 is a deficient number, since it is larger than the sum of its proper divisors (9471886).

10103312 is an equidigital number, since it uses as much as digits as its factorization.

10103312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 631465 (or 631459 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 11.

The square root of 10103312 is about 3178.5707479935. The cubic root of 10103312 is about 216.1828584146.

Adding to 10103312 its reverse (21330101), we get a palindrome (31433413).

The spelling of 10103312 in words is "ten million, one hundred three thousand, three hundred twelve".