123312133 has 8 divisors (see below), whose sum is σ = 144365760. Its totient is φ = 103117920.

The previous prime is 123312113. The next prime is 123312181. The reversal of 123312133 is 331213321.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 123312133 - 2¹⁷ = 123181061 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 123312133.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123312103) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 214543 + ... + 215116.

It is an arithmetic number, because the mean of its divisors is an integer number (18045720).

Almost surely, 2^123312133 is an apocalyptic number.

It is an amenable number.

123312133 is a deficient number, since it is larger than the sum of its proper divisors (21053627).

123312133 is an equidigital number, since it uses as much as digits as its factorization.

123312133 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 429707.

The product of its digits is 324, while the sum is 19.

The square root of 123312133 is about 11104.5996325847. The cubic root of 123312133 is about 497.7393045843.

Adding to 123312133 its reverse (331213321), we get a palindrome (454525454).

It can be divided in two parts, 1233 and 12133, that added together give a triangular number (13366 = T₁₆₃).

The spelling of 123312133 in words is "one hundred twenty-three million, three hundred twelve thousand, one hundred thirty-three".