1320120203012 has 72 divisors (see below), whose sum is σ = 2563700809320. Its totient is φ = 594171002880.

The previous prime is 1320120202993. The next prime is 1320120203023. The reversal of 1320120203012 is 2103020210231.

It can be written as a sum of positive squares in 12 ways, for example, as 1046189391556 + 273930811456 = 1022834^2 + 523384^2 .

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 74519468 + ... + 74537180.

It is an arithmetic number, because the mean of its divisors is an integer number (35606955685).

Almost surely, 2^{1320120203012} is an apocalyptic number.

It is an amenable number.

1320120203012 is a deficient number, since it is larger than the sum of its proper divisors (1243580606308).

1320120203012 is a wasteful number, since it uses less digits than its factorization.

1320120203012 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 20473 (or 20458 counting only the distinct ones).

The product of its (nonzero) digits is 144, while the sum is 17.

Adding to 1320120203012 its reverse (2103020210231), we get a palindrome (3423140413243).

The spelling of 1320120203012 in words is "one trillion, three hundred twenty billion, one hundred twenty million, two hundred three thousand, twelve".