1121223400143 has 192 divisors, whose sum is σ = 2031393323520. Its totient is φ = 542882995200.

The previous prime is 1121223400133. The next prime is 1121223400189. The reversal of 1121223400143 is 3410043221211.

It is not a de Polignac number, because 1121223400143 - 2¹⁰ = 1121223399119 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1121223400133) by changing a digit.

It is a polite number, since it can be written in 191 ways as a sum of consecutive naturals, for example, 227287905 + ... + 227292837.

It is an arithmetic number, because the mean of its divisors is an integer number (10580173560).

Almost surely, 2^{1121223400143} is an apocalyptic number.

1121223400143 is a deficient number, since it is larger than the sum of its proper divisors (910169923377).

1121223400143 is a wasteful number, since it uses less digits than its factorization.

1121223400143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 5158 (or 5151 counting only the distinct ones).

The product of its (nonzero) digits is 1152, while the sum is 24.

Adding to 1121223400143 its reverse (3410043221211), we get a palindrome (4531266621354).

The spelling of 1121223400143 in words is "one trillion, one hundred twenty-one billion, two hundred twenty-three million, four hundred thousand, one hundred forty-three".