1111323021143 has 2 divisors, whose sum is σ = 1111323021144. Its totient is φ = 1111323021142.

The previous prime is 1111323021139. The next prime is 1111323021307. The reversal of 1111323021143 is 3411203231111.

It is a weak prime.

It is a cyclic number.

It is not a de Polignac number, because 1111323021143 - 2² = 1111323021139 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1111323021943) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 555661510571 + 555661510572.

It is an arithmetic number, because the mean of its divisors is an integer number (555661510572).

Almost surely, 2^{1111323021143} is an apocalyptic number.

1111323021143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1111323021143 is an equidigital number, since it uses as much as digits as its factorization.

1111323021143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 1111323021143 its reverse (3411203231111), we get a palindrome (4522526252254).

The spelling of 1111323021143 in words is "one trillion, one hundred eleven billion, three hundred twenty-three million, twenty-one thousand, one hundred forty-three".