133321099957 has 2 divisors, whose sum is σ = 133321099958. Its totient is φ = 133321099956.

The previous prime is 133321099907. The next prime is 133321100039. The reversal of 133321099957 is 759990123331.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 114292001041 + 19029098916 = 338071^2 + 137946^2 .

It is a cyclic number.

It is not a de Polignac number, because 133321099957 - 2²⁷ = 133186882229 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133321099907) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66660549978 + 66660549979.

It is an arithmetic number, because the mean of its divisors is an integer number (66660549979).

Almost surely, 2^133321099957 is an apocalyptic number.

It is an amenable number.

133321099957 is a deficient number, since it is larger than the sum of its proper divisors (1).

133321099957 is an equidigital number, since it uses as much as digits as its factorization.

133321099957 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 1377810, while the sum is 52.

The spelling of 133321099957 in words is "one hundred thirty-three billion, three hundred twenty-one million, ninety-nine thousand, nine hundred fifty-seven".