1201300020321 has 16 divisors (see below), whose sum is σ = 1686064938240. Its totient is φ = 758702382480.

The previous prime is 1201300020313. The next prime is 1201300020337. The reversal of 1201300020321 is 1230200031021.

It is not a de Polignac number, because 1201300020321 - 2³ = 1201300020313 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1201300020321.

It is not an unprimeable number, because it can be changed into a prime (1201300020301) 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, 3809346 + ... + 4112628.

It is an arithmetic number, because the mean of its divisors is an integer number (105379058640).

Almost surely, 2^{1201300020321} is an apocalyptic number.

It is an amenable number.

1201300020321 is a deficient number, since it is larger than the sum of its proper divisors (484764917919).

1201300020321 is a wasteful number, since it uses less digits than its factorization.

1201300020321 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 372796.

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1201300020321 its reverse (1230200031021), we get a palindrome (2431500051342).

The spelling of 1201300020321 in words is "one trillion, two hundred one billion, three hundred million, twenty thousand, three hundred twenty-one".