1320331010331 has 4 divisors (see below), whose sum is σ = 1760441347112. Its totient is φ = 880220673552.

The previous prime is 1320331010311. The next prime is 1320331010351. The reversal of 1320331010331 is 1330101330231.

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

It is an interprime number because it is at equal distance from previous prime (1320331010311) and next prime (1320331010351).

It is not a de Polignac number, because 1320331010331 - 2⁶ = 1320331010267 is a prime.

It is a super-2 number, since 2×1320331010331² (a number of 25 digits) contains 22 as substring.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 1320331010298 and 1320331010307.

It is not an unprimeable number, because it can be changed into a prime (1320331010311) 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, 220055168386 + ... + 220055168391.

It is an arithmetic number, because the mean of its divisors is an integer number (440110336778).

Almost surely, 2^{1320331010331} is an apocalyptic number.

1320331010331 is a deficient number, since it is larger than the sum of its proper divisors (440110336781).

1320331010331 is an equidigital number, since it uses as much as digits as its factorization.

1320331010331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 440110336780.

The product of its (nonzero) digits is 486, while the sum is 21.

Adding to 1320331010331 its reverse (1330101330231), we get a palindrome (2650432340562).

The spelling of 1320331010331 in words is "one trillion, three hundred twenty billion, three hundred thirty-one million, ten thousand, three hundred thirty-one".