133230123 has 16 divisors (see below), whose sum is σ = 212561440. Its totient is φ = 81987552.

The previous prime is 133230121. The next prime is 133230131. The reversal of 133230123 is 321032331.

It is not a de Polignac number, because 133230123 - 2¹ = 133230121 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 133230096 and 133230105.

It is not an unprimeable number, because it can be changed into a prime (133230121) 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 in 15 ways as a sum of consecutive naturals, for example, 189436 + ... + 190137.

It is an arithmetic number, because the mean of its divisors is an integer number (13285090).

Almost surely, 2^133230123 is an apocalyptic number.

133230123 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

133230123 is a deficient number, since it is larger than the sum of its proper divisors (79331317).

133230123 is a wasteful number, since it uses less digits than its factorization.

133230123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 379595 (or 379589 counting only the distinct ones).

The product of its (nonzero) digits is 324, while the sum is 18.

The square root of 133230123 is about 11542.5353800627. The cubic root of 133230123 is about 510.7411024819.

Adding to 133230123 its reverse (321032331), we get a palindrome (454262454).

The spelling of 133230123 in words is "one hundred thirty-three million, two hundred thirty thousand, one hundred twenty-three".