1230001200 has 150 divisors (see below), whose sum is σ = 4414491884. Its totient is φ = 327991680.

The previous prime is 1230001183. The next prime is 1230001219. The reversal of 1230001200 is 21000321.

It is a happy number.

It is a tau number, because it is divible by the number of its divisors (150).

It is a Harshad number since it is a multiple of its sum of digits (9).

It is an unprimeable number.

It is a polite number, since it can be written in 29 ways as a sum of consecutive naturals, for example, 13419 + ... + 51381.

Almost surely, 2^1230001200 is an apocalyptic number.

1230001200 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 1230001200, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2207245942).

1230001200 is an abundant number, since it is smaller than the sum of its proper divisors (3184490684).

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

1230001200 is a wasteful number, since it uses less digits than its factorization.

1230001200 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 37993 (or 37973 counting only the distinct ones).

The product of its (nonzero) digits is 12, while the sum is 9.

The square root of 1230001200 is about 35071.3729414746. The cubic root of 1230001200 is about 1071.4416181268.

Adding to 1230001200 its reverse (21000321), we get a palindrome (1251001521).

The spelling of 1230001200 in words is "one billion, two hundred thirty million, one thousand, two hundred".