1320123212012 has 12 divisors (see below), whose sum is σ = 2520235223016. Its totient is φ = 600056005440.

The previous prime is 1320123212011. The next prime is 1320123212017. The reversal of 1320123212012 is 2102123210231.

It is not an unprimeable number, because it can be changed into a prime (1320123212011) 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, 15001400093 + ... + 15001400180.

It is an arithmetic number, because the mean of its divisors is an integer number (210019601918).

Almost surely, 2^{1320123212012} is an apocalyptic number.

It is an amenable number.

1320123212012 is a deficient number, since it is larger than the sum of its proper divisors (1200112011004).

1320123212012 is a wasteful number, since it uses less digits than its factorization.

1320123212012 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 30002800288 (or 30002800286 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 1320123212012 its reverse (2102123210231), we get a palindrome (3422246422243).

The spelling of 1320123212012 in words is "one trillion, three hundred twenty billion, one hundred twenty-three million, two hundred twelve thousand, twelve".