1200023213312 has 72 divisors (see below), whose sum is σ = 2986421454912. Its totient is φ = 467541504000.

The previous prime is 1200023213297. The next prime is 1200023213351. The reversal of 1200023213312 is 2133123200021.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 30419189 + ... + 30458612.

Almost surely, 2^{1200023213312} is an apocalyptic number.

It is an amenable number.

1200023213312 is an abundant number, since it is smaller than the sum of its proper divisors (1786398241600).

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

1200023213312 is an equidigital number, since it uses as much as digits as its factorization.

1200023213312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 60877835 (or 60877821 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 1200023213312 its reverse (2133123200021), we get a palindrome (3333146413333).

The spelling of 1200023213312 in words is "one trillion, two hundred billion, twenty-three million, two hundred thirteen thousand, three hundred twelve".