133431311171 has 2 divisors, whose sum is σ = 133431311172. Its totient is φ = 133431311170.

The previous prime is 133431311141. The next prime is 133431311179. The reversal of 133431311171 is 171113134331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133431311171 - 2⁶ = 133431311107 is a prime.

It is a Sophie Germain prime.

It is not a weakly prime, because it can be changed into another prime (133431311179) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66715655585 + 66715655586.

It is an arithmetic number, because the mean of its divisors is an integer number (66715655586).

Almost surely, 2^133431311171 is an apocalyptic number.

133431311171 is a deficient number, since it is larger than the sum of its proper divisors (1).

133431311171 is an equidigital number, since it uses as much as digits as its factorization.

133431311171 is an evil number, because the sum of its binary digits is even.

The product of its digits is 2268, while the sum is 29.

The spelling of 133431311171 in words is "one hundred thirty-three billion, four hundred thirty-one million, three hundred eleven thousand, one hundred seventy-one".