1321230011201 has 8 divisors (see below), whose sum is σ = 1325639827104. Its totient is φ = 1316823657120.

The previous prime is 1321230011131. The next prime is 1321230011203. The reversal of 1321230011201 is 1021100321231.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1321230011201 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is a self number, because there is not a number n which added to its sum of digits gives 1321230011201.

It is not an unprimeable number, because it can be changed into a prime (1321230011203) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 99740 + ... + 1628621.

It is an arithmetic number, because the mean of its divisors is an integer number (165704978388).

Almost surely, 2^{1321230011201} is an apocalyptic number.

It is an amenable number.

1321230011201 is a deficient number, since it is larger than the sum of its proper divisors (4409815903).

1321230011201 is a wasteful number, since it uses less digits than its factorization.

1321230011201 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1730911.

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

Adding to 1321230011201 its reverse (1021100321231), we get a palindrome (2342330332432).

The spelling of 1321230011201 in words is "one trillion, three hundred twenty-one billion, two hundred thirty million, eleven thousand, two hundred one".