1201200111143 has 2 divisors, whose sum is σ = 1201200111144. Its totient is φ = 1201200111142.

The previous prime is 1201200111119. The next prime is 1201200111149. The reversal of 1201200111143 is 3411110021021.

It is a strong prime.

It is an emirp because it is prime and its reverse (3411110021021) is a distict prime.

It is a cyclic number.

It is not a de Polignac number, because 1201200111143 - 2²⁸ = 1200931675687 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (1201200111149) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 600600055571 + 600600055572.

It is an arithmetic number, because the mean of its divisors is an integer number (600600055572).

Almost surely, 2^{1201200111143} is an apocalyptic number.

1201200111143 is a deficient number, since it is larger than the sum of its proper divisors (1).

1201200111143 is an equidigital number, since it uses as much as digits as its factorization.

1201200111143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 48, while the sum is 17.

Adding to 1201200111143 its reverse (3411110021021), we get a palindrome (4612310132164).

The spelling of 1201200111143 in words is "one trillion, two hundred one billion, two hundred million, one hundred eleven thousand, one hundred forty-three".