1320031110401 has 4 divisors (see below), whose sum is σ = 1320413842500. Its totient is φ = 1319648378304.

The previous prime is 1320031110371. The next prime is 1320031110403. The reversal of 1320031110401 is 1040111300231.

It is a semiprime because it is the product of two primes.

It can be written as a sum of positive squares in 2 ways, for example, as 17088764176 + 1302942346225 = 130724^2 + 1141465^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-1320031110401 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 1320031110401.

It is not an unprimeable number, because it can be changed into a prime (1320031110403) 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, 191360876 + ... + 191367773.

It is an arithmetic number, because the mean of its divisors is an integer number (330103460625).

Almost surely, 2^{1320031110401} is an apocalyptic number.

It is an amenable number.

1320031110401 is a deficient number, since it is larger than the sum of its proper divisors (382732099).

1320031110401 is an equidigital number, since it uses as much as digits as its factorization.

1320031110401 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 382732098.

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

Adding to 1320031110401 its reverse (1040111300231), we get a palindrome (2360142410632).

The spelling of 1320031110401 in words is "one trillion, three hundred twenty billion, thirty-one million, one hundred ten thousand, four hundred one".