1200231100320 has 96 divisors (see below), whose sum is σ = 4320831973248. Its totient is φ = 274338536448.

The previous prime is 1200231100253. The next prime is 1200231100349. The reversal of 1200231100320 is 230011320021.

It is a tau number, because it is divible by the number of its divisors (96).

It is a Harshad number since it is a multiple of its sum of digits (15).

It is a self number, because there is not a number n which added to its sum of digits gives 1200231100320.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 178602459 + ... + 178609178.

It is an arithmetic number, because the mean of its divisors is an integer number (45008666388).

Almost surely, 2^{1200231100320} is an apocalyptic number.

1200231100320 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

It is an amenable number.

1200231100320 is an abundant number, since it is smaller than the sum of its proper divisors (3120600872928).

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

1200231100320 is a wasteful number, since it uses less digits than its factorization.

1200231100320 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 357211662 (or 357211654 counting only the distinct ones).

The product of its (nonzero) digits is 72, while the sum is 15.

Adding to 1200231100320 its reverse (230011320021), we get a palindrome (1430242420341).

The spelling of 1200231100320 in words is "one trillion, two hundred billion, two hundred thirty-one million, one hundred thousand, three hundred twenty".