133323013 has 2 divisors, whose sum is σ = 133323014. Its totient is φ = 133323012.

The previous prime is 133322989. The next prime is 133323017. The reversal of 133323013 is 310323331.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 132319009 + 1004004 = 11503^2 + 1002^2 .

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133323013 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133323017) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66661506 + 66661507.

It is an arithmetic number, because the mean of its divisors is an integer number (66661507).

Almost surely, 2^133323013 is an apocalyptic number.

It is an amenable number.

133323013 is a deficient number, since it is larger than the sum of its proper divisors (1).

133323013 is an equidigital number, since it uses as much as digits as its factorization.

133323013 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 486, while the sum is 19.

The square root of 133323013 is about 11546.5584916026. The cubic root of 133323013 is about 510.8597736410.

Adding to 133323013 its reverse (310323331), we get a palindrome (443646344).

The spelling of 133323013 in words is "one hundred thirty-three million, three hundred twenty-three thousand, thirteen".