1320311003331 has 16 divisors (see below), whose sum is σ = 1763578873728. Its totient is φ = 878626128000.

The previous prime is 1320311003317. The next prime is 1320311003339. The reversal of 1320311003331 is 1333001130231.

It is not a de Polignac number, because 1320311003331 - 2²¹ = 1320308906179 is a prime.

It is a super-2 number, since 2×1320311003331² (a number of 25 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 1320311003298 and 1320311003307.

It is not an unprimeable number, because it can be changed into a prime (1320311003339) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5895556 + ... + 6115406.

It is an arithmetic number, because the mean of its divisors is an integer number (110223679608).

Almost surely, 2^{1320311003331} is an apocalyptic number.

1320311003331 is a deficient number, since it is larger than the sum of its proper divisors (443267870397).

1320311003331 is a wasteful number, since it uses less digits than its factorization.

1320311003331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 223442.

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

Adding to 1320311003331 its reverse (1333001130231), we get a palindrome (2653312133562).

The spelling of 1320311003331 in words is "one trillion, three hundred twenty billion, three hundred eleven million, three thousand, three hundred thirty-one".