13531143233 has 2 divisors, whose sum is σ = 13531143234. Its totient is φ = 13531143232.

The previous prime is 13531143211. The next prime is 13531143247. The reversal of 13531143233 is 33234113531.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 10487193649 + 3043949584 = 102407^2 + 55172^2 .

It is a cyclic number.

It is not a de Polignac number, because 13531143233 - 2⁶ = 13531143169 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 13531143196 and 13531143205.

It is not a weakly prime, because it can be changed into another prime (13531143533) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6765571616 + 6765571617.

It is an arithmetic number, because the mean of its divisors is an integer number (6765571617).

Almost surely, 2^13531143233 is an apocalyptic number.

It is an amenable number.

13531143233 is a deficient number, since it is larger than the sum of its proper divisors (1).

13531143233 is an equidigital number, since it uses as much as digits as its factorization.

13531143233 is an evil number, because the sum of its binary digits is even.

The product of its digits is 9720, while the sum is 29.

Adding to 13531143233 its reverse (33234113531), we get a palindrome (46765256764).

The spelling of 13531143233 in words is "thirteen billion, five hundred thirty-one million, one hundred forty-three thousand, two hundred thirty-three".