133123220410391 has 2 divisors, whose sum is σ = 133123220410392. Its totient is φ = 133123220410390.

The previous prime is 133123220410373. The next prime is 133123220410403. The reversal of 133123220410391 is 193014022321331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133123220410391 - 2¹⁰ = 133123220409367 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133123220410291) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66561610205195 + 66561610205196.

It is an arithmetic number, because the mean of its divisors is an integer number (66561610205196).

Almost surely, 2^{133123220410391} is an apocalyptic number.

133123220410391 is a deficient number, since it is larger than the sum of its proper divisors (1).

133123220410391 is an equidigital number, since it uses as much as digits as its factorization.

133123220410391 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 23328, while the sum is 35.

The spelling of 133123220410391 in words is "one hundred thirty-three trillion, one hundred twenty-three billion, two hundred twenty million, four hundred ten thousand, three hundred ninety-one".