133323131243 has 2 divisors, whose sum is σ = 133323131244. Its totient is φ = 133323131242.

The previous prime is 133323131213. The next prime is 133323131257. The reversal of 133323131243 is 342131323331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133323131243 is a prime.

It is not a weakly prime, because it can be changed into another prime (133323131203) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66661565621 + 66661565622.

It is an arithmetic number, because the mean of its divisors is an integer number (66661565622).

Almost surely, 2^133323131243 is an apocalyptic number.

133323131243 is a deficient number, since it is larger than the sum of its proper divisors (1).

133323131243 is an equidigital number, since it uses as much as digits as its factorization.

133323131243 is an evil number, because the sum of its binary digits is even.

The product of its digits is 11664, while the sum is 29.

Adding to 133323131243 its reverse (342131323331), we get a palindrome (475454454574).

The spelling of 133323131243 in words is "one hundred thirty-three billion, three hundred twenty-three million, one hundred thirty-one thousand, two hundred forty-three".