12320520133 has 2 divisors, whose sum is σ = 12320520134. Its totient is φ = 12320520132.

The previous prime is 12320519989. The next prime is 12320520137. The reversal of 12320520133 is 33102502321.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 11160232164 + 1160287969 = 105642^2 + 34063^2 .

It is a cyclic number.

It is not a de Polignac number, because 12320520133 - 2²⁵ = 12286965701 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (12320520137) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 6160260066 + 6160260067.

It is an arithmetic number, because the mean of its divisors is an integer number (6160260067).

Almost surely, 2^12320520133 is an apocalyptic number.

It is an amenable number.

12320520133 is a deficient number, since it is larger than the sum of its proper divisors (1).

12320520133 is an equidigital number, since it uses as much as digits as its factorization.

12320520133 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 1080, while the sum is 22.

The spelling of 12320520133 in words is "twelve billion, three hundred twenty million, five hundred twenty thousand, one hundred thirty-three".