1200234655152 has 720 divisors, whose sum is σ = 4007036866560. Its totient is φ = 346652587008.

The previous prime is 1200234655093. The next prime is 1200234655199. The reversal of 1200234655152 is 2515564320021.

1200234655152 is a `hidden beast` number, since 1 + 20 + 0 + 2 + 34 + 6 + 551 + 52 = 666.

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 143 ways as a sum of consecutive naturals, for example, 1585514358 + ... + 1585515114.

Almost surely, 2^{1200234655152} is an apocalyptic number.

1200234655152 is a gapful number since it is divisible by the number (12) 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 1200234655152, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (2003518433280).

1200234655152 is an abundant number, since it is smaller than the sum of its proper divisors (2806802211408).

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

1200234655152 is a wasteful number, since it uses less digits than its factorization.

1200234655152 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 952 (or 921 counting only the distinct ones).

The product of its (nonzero) digits is 72000, while the sum is 36.

Adding to 1200234655152 its reverse (2515564320021), we get a palindrome (3715798975173).

The spelling of 1200234655152 in words is "one trillion, two hundred billion, two hundred thirty-four million, six hundred fifty-five thousand, one hundred fifty-two".