123323100312 has 16 divisors (see below), whose sum is σ = 308307750840. Its totient is φ = 41107700096.

The previous prime is 123323100293. The next prime is 123323100353. The reversal of 123323100312 is 213001323321.

It is a super-2 number, since 2×123323100312² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is an unprimeable number.

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 3 ways as a sum of consecutive naturals, for example, 2569231233 + ... + 2569231280.

Almost surely, 2^123323100312 is an apocalyptic number.

123323100312 is a gapful number since it is divisible by the number (12) formed by its first and last digit.

It is an amenable number.

123323100312 is an abundant number, since it is smaller than the sum of its proper divisors (184984650528).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

123323100312 is a wasteful number, since it uses less digits than its factorization.

123323100312 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5138462522 (or 5138462518 counting only the distinct ones).

The product of its (nonzero) digits is 648, while the sum is 21.

Adding to 123323100312 its reverse (213001323321), we get a palindrome (336324423633).

The spelling of 123323100312 in words is "one hundred twenty-three billion, three hundred twenty-three million, one hundred thousand, three hundred twelve".