10103212312 has 8 divisors (see below), whose sum is σ = 18943523100.
Its totient is φ = 5051606152.
The previous prime is 10103212307. The next prime is 10103212313. The reversal of 10103212312 is 21321230101.
Adding to 10103212312 its reverse (21321230101), we get a palindrome (31424442413).
It is a tau number, because it is divible by the number of its divisors (8).
It is a congruent number.
It is not an unprimeable number, because it can be changed into a prime (10103212313) by changing a digit.
It is a polite number, since it can be written as a sum of consecutive naturals, namely, 631450762 + ... + 631450777.
Almost surely, 210103212312 is an apocalyptic number.
It is an amenable number.
10103212312 is a deficient number, since it is larger than the sum of its proper divisors (8840310788).
10103212312 is a wasteful number, since it uses less digits than its factorization.
10103212312 is an evil number, because the sum of its binary digits is even.
The sum of its prime factors is 1262901545 (or 1262901541 counting only the distinct ones).
The product of its (nonzero) digits is 72, while the sum is 16.
The spelling of 10103212312 in words is "ten billion, one hundred three million, two hundred twelve thousand, three hundred twelve".