133234123523 has 4 divisors (see below), whose sum is σ = 133263781728. Its totient is φ = 133204465320.

The previous prime is 133234123489. The next prime is 133234123571. The reversal of 133234123523 is 325321432331.

It is a happy number.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 133234123523 - 2⁶ = 133234123459 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 133234123523.

It is not an unprimeable number, because it can be changed into a prime (133234123223) 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 in 3 ways as a sum of consecutive naturals, for example, 14822363 + ... + 14831348.

It is an arithmetic number, because the mean of its divisors is an integer number (33315945432).

Almost surely, 2^133234123523 is an apocalyptic number.

133234123523 is a deficient number, since it is larger than the sum of its proper divisors (29658205).

133234123523 is an equidigital number, since it uses as much as digits as its factorization.

133234123523 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 29658204.

The product of its digits is 38880, while the sum is 32.

Adding to 133234123523 its reverse (325321432331), we get a palindrome (458555555854).

The spelling of 133234123523 in words is "one hundred thirty-three billion, two hundred thirty-four million, one hundred twenty-three thousand, five hundred twenty-three".