1303121333331 has 6 divisors (see below), whose sum is σ = 1882286370380. Its totient is φ = 868747555548.

The previous prime is 1303121333287. The next prime is 1303121333347. The reversal of 1303121333331 is 1333331213031.

1303121333331 is a `hidden beast` number, since 1 + 3 + 0 + 312 + 13 + 3 + 3 + 331 = 666.

It is not a de Polignac number, because 1303121333331 - 2¹⁵ = 1303121300563 is a prime.

It is a super-2 number, since 2×1303121333331² (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 = 1303121333295 and 1303121333304.

It is not an unprimeable number, because it can be changed into a prime (1303121333431) 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 5 ways as a sum of consecutive naturals, for example, 72395629621 + ... + 72395629638.

Almost surely, 2^{1303121333331} is an apocalyptic number.

1303121333331 is a deficient number, since it is larger than the sum of its proper divisors (579165037049).

1303121333331 is a wasteful number, since it uses less digits than its factorization.

1303121333331 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 144791259265 (or 144791259262 counting only the distinct ones).

The product of its (nonzero) digits is 4374, while the sum is 27.

Adding to 1303121333331 its reverse (1333331213031), we get a palindrome (2636452546362).

The spelling of 1303121333331 in words is "one trillion, three hundred three billion, one hundred twenty-one million, three hundred thirty-three thousand, three hundred thirty-one".