1200100003312 has 20 divisors (see below), whose sum is σ = 2657364293296. Its totient is φ = 514328572800.

The previous prime is 1200100003309. The next prime is 1200100003313. The reversal of 1200100003312 is 2133000010021.

It is a junction number, because it is equal to n+sod(n) for n = 1200100003292 and 1200100003301.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200100003313) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 5357589189 + ... + 5357589412.

Almost surely, 2^{1200100003312} is an apocalyptic number.

It is an amenable number.

1200100003312 is an abundant number, since it is smaller than the sum of its proper divisors (1457264289984).

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

1200100003312 is a wasteful number, since it uses less digits than its factorization.

1200100003312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 10715178616 (or 10715178610 counting only the distinct ones).

The product of its (nonzero) digits is 36, while the sum is 13.

Adding to 1200100003312 its reverse (2133000010021), we get a palindrome (3333100013333).

The spelling of 1200100003312 in words is "one trillion, two hundred billion, one hundred million, three thousand, three hundred twelve".