10001103312 has 40 divisors (see below), whose sum is σ = 25901311456. Its totient is φ = 3325297536.

The previous prime is 10001103263. The next prime is 10001103319. The reversal of 10001103312 is 21330110001.

It is a Harshad number since it is a multiple of its sum of digits (12).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (10001103319) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 243358 + ... + 281469.

Almost surely, 2^10001103312 is an apocalyptic number.

10001103312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

10001103312 is an abundant number, since it is smaller than the sum of its proper divisors (15900208144).

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

10001103312 is a wasteful number, since it uses less digits than its factorization.

10001103312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 525235 (or 525229 counting only the distinct ones).

The product of its (nonzero) digits is 18, while the sum is 12.

Adding to 10001103312 its reverse (21330110001), we get a palindrome (31331213313).

The spelling of 10001103312 in words is "ten billion, one million, one hundred three thousand, three hundred twelve".