123333505 has 4 divisors (see below), whose sum is σ = 148000212. Its totient is φ = 98666800.

The previous prime is 123333479. The next prime is 123333517. The reversal of 123333505 is 505333321.

It is a happy number.

It is a semiprime because it is the product of two primes, and also an emirpimes, since its reverse is a distinct semiprime: 505333321 = 3257 ⋅155153.

It can be written as a sum of positive squares in 2 ways, for example, as 49098049 + 74235456 = 7007^2 + 8616^2 .

It is not a de Polignac number, because 123333505 - 2⁵ = 123333473 is a prime.

It is a super-2 number, since 2×123333505² = 30422306911170050, which contains 22 as substring.

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 123333505.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 12333346 + ... + 12333355.

It is an arithmetic number, because the mean of its divisors is an integer number (37000053).

Almost surely, 2^123333505 is an apocalyptic number.

It is an amenable number.

123333505 is a deficient number, since it is larger than the sum of its proper divisors (24666707).

123333505 is an equidigital number, since it uses as much as digits as its factorization.

123333505 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 24666706.

The product of its (nonzero) digits is 4050, while the sum is 25.

The square root of 123333505 is about 11105.5618948345. The cubic root of 123333505 is about 497.7680583645.

Adding to 123333505 its reverse (505333321), we get a palindrome (628666826).

The spelling of 123333505 in words is "one hundred twenty-three million, three hundred thirty-three thousand, five hundred five".