1321111301201 has 4 divisors (see below), whose sum is σ = 1321113600000. Its totient is φ = 1321109002404.

The previous prime is 1321111301141. The next prime is 1321111301227. The reversal of 1321111301201 is 1021031111231.

It is a semiprime because it is the product of two primes, and also a Blum integer, because the two primes are equal to 3 mod 4, and also a brilliant number, because the two primes have the same length.

It is a cyclic number.

It is not a de Polignac number, because 1321111301201 - 2¹⁸ = 1321111039057 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 1321111301201.

It is not an unprimeable number, because it can be changed into a prime (1321111301261) 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, 570800 + ... + 1722798.

It is an arithmetic number, because the mean of its divisors is an integer number (330278400000).

Almost surely, 2^{1321111301201} is an apocalyptic number.

It is an amenable number.

1321111301201 is a deficient number, since it is larger than the sum of its proper divisors (2298799).

1321111301201 is a wasteful number, since it uses less digits than its factorization.

1321111301201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2298798.

The product of its (nonzero) digits is 36, while the sum is 17.

Adding to 1321111301201 its reverse (1021031111231), we get a palindrome (2342142412432).

The spelling of 1321111301201 in words is "one trillion, three hundred twenty-one billion, one hundred eleven million, three hundred one thousand, two hundred one".