1200123301312 has 56 divisors (see below), whose sum is σ = 2627239979952. Its totient is φ = 540393216000.

The previous prime is 1200123301309. The next prime is 1200123301327. The reversal of 1200123301312 is 2131033210021.

It is a self number, because there is not a number n which added to its sum of digits gives 1200123301312.

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, 17556814 + ... + 17625037.

It is an arithmetic number, because the mean of its divisors is an integer number (46914999642).

Almost surely, 2^{1200123301312} is an apocalyptic number.

It is an amenable number.

1200123301312 is an abundant number, since it is smaller than the sum of its proper divisors (1427116678640).

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

1200123301312 is a wasteful number, since it uses less digits than its factorization.

1200123301312 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 35181917 (or 35181907 counting only the distinct ones).

The product of its (nonzero) digits is 216, while the sum is 19.

Adding to 1200123301312 its reverse (2131033210021), we get a palindrome (3331156511333).

The spelling of 1200123301312 in words is "one trillion, two hundred billion, one hundred twenty-three million, three hundred one thousand, three hundred twelve".