123011021223200 has 288 divisors, whose sum is σ = 332217662958720. Its totient is φ = 44104550400000.

The previous prime is 123011021223131. The next prime is 123011021223241. The reversal of 123011021223200 is 2322120110321.

It is a super-2 number, since 2×123011021223200² (a number of 29 digits) contains 22 as substring.

It is a Harshad number since it is a multiple of its sum of digits (20).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 213913661 + ... + 214487939.

It is an arithmetic number, because the mean of its divisors is an integer number (1153533551940).

Almost surely, 2^{123011021223200} is an apocalyptic number.

123011021223200 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 123011021223200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (166108831479360).

123011021223200 is an abundant number, since it is smaller than the sum of its proper divisors (209206641735520).

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

123011021223200 is a wasteful number, since it uses less digits than its factorization.

123011021223200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 574652 (or 574639 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 20.

Adding to 123011021223200 its reverse (2322120110321), we get a palindrome (125333141333521).

The spelling of 123011021223200 in words is "one hundred twenty-three trillion, eleven billion, twenty-one million, two hundred twenty-three thousand, two hundred".