1423123200 has 324 divisors, whose sum is σ = 5258705088. Its totient is φ = 366796800.

The previous prime is 1423123187. The next prime is 1423123217. The reversal of 1423123200 is 23213241.

1423123200 is digitally balanced in base 6, because in such base it contains all the possibile digits an equal number of times.

It is a Harshad number since it is a multiple of its sum of digits (18).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (11) of ones.

It is a polite number, since it can be written in 35 ways as a sum of consecutive naturals, for example, 1785202 + ... + 1785998.

Almost surely, 2^1423123200 is an apocalyptic number.

1423123200 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 1423123200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2629352544).

1423123200 is an abundant number, since it is smaller than the sum of its proper divisors (3835581888).

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

1423123200 is a wasteful number, since it uses less digits than its factorization.

1423123200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 860 (or 838 counting only the distinct ones).

The product of its (nonzero) digits is 288, while the sum is 18.

The square root of 1423123200 is about 37724.3051625872. The cubic root of 1423123200 is about 1124.8143100929.

Adding to 1423123200 its reverse (23213241), we get a palindrome (1446336441).

The spelling of 1423123200 in words is "one billion, four hundred twenty-three million, one hundred twenty-three thousand, two hundred".