1210320310143 has 16 divisors (see below), whose sum is σ = 1844655687936. Its totient is φ = 691477328640.

The previous prime is 1210320310123. The next prime is 1210320310153. The reversal of 1210320310143 is 3410130230121.

It is not a de Polignac number, because 1210320310143 - 2¹² = 1210320306047 is a prime.

It is a Harshad number since it is a multiple of its sum of digits (21).

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1210320310123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 5484093 + ... + 5700518.

It is an arithmetic number, because the mean of its divisors is an integer number (115290980496).

Almost surely, 2^{1210320310143} is an apocalyptic number.

1210320310143 is a deficient number, since it is larger than the sum of its proper divisors (634335377793).

1210320310143 is a wasteful number, since it uses less digits than its factorization.

1210320310143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 11189774.

The product of its (nonzero) digits is 432, while the sum is 21.

Adding to 1210320310143 its reverse (3410130230121), we get a palindrome (4620450540264).

The spelling of 1210320310143 in words is "one trillion, two hundred ten billion, three hundred twenty million, three hundred ten thousand, one hundred forty-three".