133122323309 has 4 divisors (see below), whose sum is σ = 135304656540. Its totient is φ = 130939990080.

The previous prime is 133122323287. The next prime is 133122323333. The reversal of 133122323309 is 903323221331.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 903323221331 = 41 ⋅22032273691.

It can be written as a sum of positive squares in 2 ways, for example, as 75784584100 + 57337739209 = 275290^2 + 239453^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133122323309 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (133122323209) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 1091166524 + ... + 1091166645.

It is an arithmetic number, because the mean of its divisors is an integer number (33826164135).

Almost surely, 2^133122323309 is an apocalyptic number.

It is an amenable number.

133122323309 is a deficient number, since it is larger than the sum of its proper divisors (2182333231).

133122323309 is an equidigital number, since it uses as much as digits as its factorization.

133122323309 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 2182333230.

The product of its (nonzero) digits is 17496, while the sum is 32.

The spelling of 133122323309 in words is "one hundred thirty-three billion, one hundred twenty-two million, three hundred twenty-three thousand, three hundred nine".