123133210319 has 4 divisors (see below), whose sum is σ = 140723668944. Its totient is φ = 105542751696.

The previous prime is 123133210223. The next prime is 123133210337. The reversal of 123133210319 is 913012331321.

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: 913012331321 = 654047 ⋅1395943.

It is a cyclic number.

It is not a de Polignac number, because 123133210319 - 2¹² = 123133206223 is a prime.

It is a super-4 number, since 4×123133210319⁴ (a number of 45 digits) contains 4444 as substring. Note that it is a super-d number also for d = 2.

It is a Duffinian number.

It is a junction number, because it is equal to n+sod(n) for n = 123133210291 and 123133210300.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123133210019) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 8795229302 + ... + 8795229315.

It is an arithmetic number, because the mean of its divisors is an integer number (35180917236).

Almost surely, 2^123133210319 is an apocalyptic number.

123133210319 is a deficient number, since it is larger than the sum of its proper divisors (17590458625).

123133210319 is an equidigital number, since it uses as much as digits as its factorization.

123133210319 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 17590458624.

The product of its (nonzero) digits is 2916, while the sum is 29.

The spelling of 123133210319 in words is "one hundred twenty-three billion, one hundred thirty-three million, two hundred ten thousand, three hundred nineteen".