1121001143 has 2 divisors, whose sum is σ = 1121001144. Its totient is φ = 1121001142.

The previous prime is 1121001109. The next prime is 1121001149. The reversal of 1121001143 is 3411001211.

It is a strong prime.

It is a cyclic number.

It is not a de Polignac number, because 1121001143 - 2¹⁰ = 1121000119 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1121001149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 560500571 + 560500572.

It is an arithmetic number, because the mean of its divisors is an integer number (560500572).

Almost surely, 2^1121001143 is an apocalyptic number.

1121001143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1121001143 is an equidigital number, since it uses as much as digits as its factorization.

1121001143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 24, while the sum is 14.

The square root of 1121001143 is about 33481.3551547723. The cubic root of 1121001143 is about 1038.8081585233.

Adding to 1121001143 its reverse (3411001211), we get a palindrome (4532002354).

The spelling of 1121001143 in words is "one billion, one hundred twenty-one million, one thousand, one hundred forty-three".