123423301200 has 120 divisors (see below), whose sum is σ = 395572017088. Its totient is φ = 32895728640.

The previous prime is 123423301163. The next prime is 123423301207. The reversal of 123423301200 is 2103324321.

It is a tau number, because it is divible by the number of its divisors (120).

It is a super-2 number, since 2×123423301200² (a number of 23 digits) contains 22 as substring.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (123423301207) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 2365797 + ... + 2417403.

Almost surely, 2^123423301200 is an apocalyptic number.

123423301200 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 123423301200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (197786008544).

123423301200 is an abundant number, since it is smaller than the sum of its proper divisors (272148715888).

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

123423301200 is a wasteful number, since it uses less digits than its factorization.

123423301200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 53621 (or 53610 counting only the distinct ones).

The product of its (nonzero) digits is 864, while the sum is 21.

Adding to 123423301200 its reverse (2103324321), we get a palindrome (125526625521).

The spelling of 123423301200 in words is "one hundred twenty-three billion, four hundred twenty-three million, three hundred one thousand, two hundred".