133557303331 has 2 divisors, whose sum is σ = 133557303332. Its totient is φ = 133557303330.

The previous prime is 133557303301. The next prime is 133557303353. The reversal of 133557303331 is 133303755331.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 133557303331 - 2¹³ = 133557295139 is a prime.

It is a super-2 number, since 2×133557303331² (a number of 23 digits) contains 22 as substring.

It is not a weakly prime, because it can be changed into another prime (133557303301) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 66778651665 + 66778651666.

It is an arithmetic number, because the mean of its divisors is an integer number (66778651666).

Almost surely, 2^133557303331 is an apocalyptic number.

133557303331 is a deficient number, since it is larger than the sum of its proper divisors (1).

133557303331 is an equidigital number, since it uses as much as digits as its factorization.

133557303331 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 127575, while the sum is 37.

The spelling of 133557303331 in words is "one hundred thirty-three billion, five hundred fifty-seven million, three hundred three thousand, three hundred thirty-one".