133120423 has 2 divisors, whose sum is σ = 133120424. Its totient is φ = 133120422.

The previous prime is 133120409. The next prime is 133120433. The reversal of 133120423 is 324021331.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-133120423 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 133120423.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (133120433) 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, 66560211 + 66560212.

It is an arithmetic number, because the mean of its divisors is an integer number (66560212).

Almost surely, 2^133120423 is an apocalyptic number.

133120423 is a deficient number, since it is larger than the sum of its proper divisors (1).

133120423 is an equidigital number, since it uses as much as digits as its factorization.

133120423 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 432, while the sum is 19.

The square root of 133120423 is about 11537.7824125783. The cubic root of 133120423 is about 510.6008847334.

Adding to 133120423 its reverse (324021331), we get a palindrome (457141754).

The spelling of 133120423 in words is "one hundred thirty-three million, one hundred twenty thousand, four hundred twenty-three".