1143301215111 has 16 divisors (see below), whose sum is σ = 1679448774528. Its totient is φ = 686049332000.

The previous prime is 1143301215103. The next prime is 1143301215167. The reversal of 1143301215111 is 1115121033411.

It is a happy number.

It is a cyclic number.

It is not a de Polignac number, because 1143301215111 - 2³ = 1143301215103 is a prime.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1143301215181) 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, 171509001 + ... + 171515666.

It is an arithmetic number, because the mean of its divisors is an integer number (104965548408).

Almost surely, 2^{1143301215111} is an apocalyptic number.

1143301215111 is a gapful number since it is divisible by the number (11) formed by its first and last digit.

1143301215111 is a deficient number, since it is larger than the sum of its proper divisors (536147559417).

1143301215111 is a wasteful number, since it uses less digits than its factorization.

1143301215111 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 343024782.

The product of its (nonzero) digits is 360, while the sum is 24.

Adding to 1143301215111 its reverse (1115121033411), we get a palindrome (2258422248522).

The spelling of 1143301215111 in words is "one trillion, one hundred forty-three billion, three hundred one million, two hundred fifteen thousand, one hundred eleven".