1201321302113 has 4 divisors (see below), whose sum is σ = 1201370546880. Its totient is φ = 1201272057348.

The previous prime is 1201321302101. The next prime is 1201321302199. The reversal of 1201321302113 is 3112031231021.

It is a happy number.

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.

It is a cyclic number.

It is not a de Polignac number, because 1201321302113 - 2²⁰ = 1201320253537 is a prime.

It is a Duffinian number.

It is a Curzon number.

It is not an unprimeable number, because it can be changed into a prime (1201321305113) 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, 24585773 + ... + 24634586.

It is an arithmetic number, because the mean of its divisors is an integer number (300342636720).

Almost surely, 2^{1201321302113} is an apocalyptic number.

It is an amenable number.

1201321302113 is a deficient number, since it is larger than the sum of its proper divisors (49244767).

1201321302113 is an equidigital number, since it uses as much as digits as its factorization.

1201321302113 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49244766.

The product of its (nonzero) digits is 216, while the sum is 20.

Adding to 1201321302113 its reverse (3112031231021), we get a palindrome (4313352533134).

The spelling of 1201321302113 in words is "one trillion, two hundred one billion, three hundred twenty-one million, three hundred two thousand, one hundred thirteen".