1204003121200 has 60 divisors (see below), whose sum is σ = 3155582737368. Its totient is φ = 437819315200.

The previous prime is 1204003121131. The next prime is 1204003121207. The reversal of 1204003121200 is 21213004021.

It is a Harshad number since it is a multiple of its sum of digits (16).

It is not an unprimeable number, because it can be changed into a prime (1204003121207) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 136814137 + ... + 136822936.

Almost surely, 2^{1204003121200} is an apocalyptic number.

1204003121200 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1204003121200 is an abundant number, since it is smaller than the sum of its proper divisors (1951579616168).

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

1204003121200 is a wasteful number, since it uses less digits than its factorization.

1204003121200 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 273637102 (or 273637091 counting only the distinct ones).

The product of its (nonzero) digits is 96, while the sum is 16.

Adding to 1204003121200 its reverse (21213004021), we get a palindrome (1225216125221).

The spelling of 1204003121200 in words is "one trillion, two hundred four billion, three million, one hundred twenty-one thousand, two hundred".