13331043331 has 2 divisors, whose sum is σ = 13331043332. Its totient is φ = 13331043330.

The previous prime is 13331043311. The next prime is 13331043419. The reversal of 13331043331 is 13334013331.

It is a weak prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-13331043331 is a prime.

It is a super-2 number, since 2×13331043331² (a number of 21 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 13331043296 and 13331043305.

It is not a weakly prime, because it can be changed into another prime (13331043311) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6665521665 + 6665521666.

It is an arithmetic number, because the mean of its divisors is an integer number (6665521666).

Almost surely, 2^13331043331 is an apocalyptic number.

13331043331 is a deficient number, since it is larger than the sum of its proper divisors (1).

13331043331 is an equidigital number, since it uses as much as digits as its factorization.

13331043331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 2916, while the sum is 25.

Adding to 13331043331 its reverse (13334013331), we get a palindrome (26665056662).

The spelling of 13331043331 in words is "thirteen billion, three hundred thirty-one million, forty-three thousand, three hundred thirty-one".