123312210000 has 200 divisors, whose sum is σ = 454935923904. Its totient is φ = 28185600000.

The previous prime is 123312209981. The next prime is 123312210113. The reversal of 123312210000 is 12213321.

It is a tau number, because it is divible by the number of its divisors (200).

It is a super-2 number, since 2×123312210000² (a number of 23 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (15).

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 39 ways as a sum of consecutive naturals, for example, 83601 + ... + 503600.

Almost surely, 2^123312210000 is an apocalyptic number.

123312210000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 123312210000, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (227467961952).

123312210000 is an abundant number, since it is smaller than the sum of its proper divisors (331623713904).

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

123312210000 is an equidigital number, since it uses as much as digits as its factorization.

123312210000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 587239 (or 587218 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 123312210000 its reverse (12213321), we get a palindrome (123324423321).

The spelling of 123312210000 in words is "one hundred twenty-three billion, three hundred twelve million, two hundred ten thousand".