10103512 has 8 divisors (see below), whose sum is σ = 18944100. Its totient is φ = 5051752.

The previous prime is 10103477. The next prime is 10103521. The reversal of 10103512 is 21530101.

It is a tau number, because it is divible by the number of its divisors (8).

It is a junction number, because it is equal to n+sod(n) for n = 10103492 and 10103501.

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, 631462 + ... + 631477.

Almost surely, 2^10103512 is an apocalyptic number.

It is an amenable number.

10103512 is a deficient number, since it is larger than the sum of its proper divisors (8840588).

10103512 is a wasteful number, since it uses less digits than its factorization.

10103512 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1262945 (or 1262941 counting only the distinct ones).

The product of its (nonzero) digits is 30, while the sum is 13.

The square root of 10103512 is about 3178.6022085187. The cubic root of 10103512 is about 216.1842848870.

Adding to 10103512 its reverse (21530101), we get a palindrome (31633613).

The spelling of 10103512 in words is "ten million, one hundred three thousand, five hundred twelve".