1211301200321 has 16 divisors (see below), whose sum is σ = 1233773460480. Its totient is φ = 1188895110480.

The previous prime is 1211301200299. The next prime is 1211301200353. The reversal of 1211301200321 is 1230021031121.

It is a cyclic number.

It is not a de Polignac number, because 1211301200321 - 2⁶ = 1211301200257 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 1211301200321.

It is not an unprimeable number, because it can be changed into a prime (1211301200371) 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, 131844890 + ... + 131854076.

It is an arithmetic number, because the mean of its divisors is an integer number (77110841280).

Almost surely, 2^{1211301200321} is an apocalyptic number.

It is an amenable number.

1211301200321 is a deficient number, since it is larger than the sum of its proper divisors (22472260159).

1211301200321 is an equidigital number, since it uses as much as digits as its factorization.

1211301200321 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 12524.

The product of its (nonzero) digits is 72, while the sum is 17.

Adding to 1211301200321 its reverse (1230021031121), we get a palindrome (2441322231442).

The spelling of 1211301200321 in words is "one trillion, two hundred eleven billion, three hundred one million, two hundred thousand, three hundred twenty-one".