1200100324143 has 8 divisors (see below), whose sum is σ = 1828724303488. Its totient is φ = 685771613784.

The previous prime is 1200100324141. The next prime is 1200100324151. The reversal of 1200100324143 is 3414230010021.

It is a sphenic number, since it is the product of 3 distinct primes.

It is not a de Polignac number, because 1200100324143 - 2¹ = 1200100324141 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21), and also a Moran number because the ratio is a prime number: 57147634483 = 1200100324143 / (1 + 2 + 0 + 0 + 1 + 0 + 0 + 3 + 2 + 4 + 1 + 4 + 3).

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1200100324141) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 28573817221 + ... + 28573817262.

It is an arithmetic number, because the mean of its divisors is an integer number (228590537936).

Almost surely, 2^{1200100324143} is an apocalyptic number.

1200100324143 is a deficient number, since it is larger than the sum of its proper divisors (628623979345).

1200100324143 is an equidigital number, since it uses as much as digits as its factorization.

1200100324143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 57147634493.

The product of its (nonzero) digits is 576, while the sum is 21.

Adding to 1200100324143 its reverse (3414230010021), we get a palindrome (4614330334164).

The spelling of 1200100324143 in words is "one trillion, two hundred billion, one hundred million, three hundred twenty-four thousand, one hundred forty-three".