1320043311212 has 48 divisors (see below), whose sum is σ = 2537577315840. Its totient is φ = 598051631232.

The previous prime is 1320043311203. The next prime is 1320043311233. The reversal of 1320043311212 is 2121133400231.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 34813448 + ... + 34851344.

It is an arithmetic number, because the mean of its divisors is an integer number (52866194080).

Almost surely, 2^{1320043311212} is an apocalyptic number.

It is an amenable number.

1320043311212 is a deficient number, since it is larger than the sum of its proper divisors (1217534004628).

1320043311212 is a wasteful number, since it uses less digits than its factorization.

1320043311212 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57870 (or 57868 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 23.

Adding to 1320043311212 its reverse (2121133400231), we get a palindrome (3441176711443).

The spelling of 1320043311212 in words is "one trillion, three hundred twenty billion, forty-three million, three hundred eleven thousand, two hundred twelve".