1200023011332 has 48 divisors (see below), whose sum is σ = 3130257753280. Its totient is φ = 397553629824.

The previous prime is 1200023011301. The next prime is 1200023011333. The reversal of 1200023011332 is 2331103200021.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is not an unprimeable number, because it can be changed into a prime (1200023011333) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34066213 + ... + 34101420.

Almost surely, 2^{1200023011332} is an apocalyptic number.

1200023011332 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

1200023011332 is an abundant number, since it is smaller than the sum of its proper divisors (1930234741948).

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

1200023011332 is a wasteful number, since it uses less digits than its factorization.

1200023011332 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 68167809 (or 68167801 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 18.

Adding to 1200023011332 its reverse (2331103200021), we get a palindrome (3531126211353).

The spelling of 1200023011332 in words is "one trillion, two hundred billion, twenty-three million, eleven thousand, three hundred thirty-two".