1281204342000 has 240 divisors, whose sum is σ = 4881622243680. Its totient is φ = 310594944000.

The previous prime is 1281204341993. The next prime is 1281204342133. The reversal of 1281204342000 is 2434021821.

1281204342000 is a `hidden beast` number, since 1 + 2 + 8 + 1 + 20 + 434 + 200 + 0 = 666.

It is a tau number, because it is divible by the number of its divisors (240).

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 47 ways as a sum of consecutive naturals, for example, 3037365 + ... + 3433364.

It is an arithmetic number, because the mean of its divisors is an integer number (20340092682).

Almost surely, 2^{1281204342000} is an apocalyptic number.

1281204342000 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1281204342000 is an abundant number, since it is smaller than the sum of its proper divisors (3600417901680).

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

1281204342000 is a wasteful number, since it uses less digits than its factorization.

1281204342000 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 6470769 (or 6470750 counting only the distinct ones).

The product of its (nonzero) digits is 3072, while the sum is 27.

Adding to 1281204342000 its reverse (2434021821), we get a palindrome (1283638363821).

The spelling of 1281204342000 in words is "one trillion, two hundred eighty-one billion, two hundred four million, three hundred forty-two thousand".