1204112143 has 4 divisors (see below), whose sum is σ = 1296736168. Its totient is φ = 1111488120.

The previous prime is 1204112113. The next prime is 1204112171. The reversal of 1204112143 is 3412114021.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 1204112143 - 2⁵ = 1204112111 is a prime.

It is a self number, because there is not a number n which added to its sum of digits gives 1204112143.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (1204112113) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 46311993 + ... + 46312018.

It is an arithmetic number, because the mean of its divisors is an integer number (324184042).

Almost surely, 2^1204112143 is an apocalyptic number.

1204112143 is a gapful number since it is divisible by the number (13) formed by its first and last digit.

1204112143 is a deficient number, since it is larger than the sum of its proper divisors (92624025).

1204112143 is an equidigital number, since it uses as much as digits as its factorization.

1204112143 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 92624024.

The product of its (nonzero) digits is 192, while the sum is 19.

The square root of 1204112143 is about 34700.3190619337. The cubic root of 1204112143 is about 1063.8710197428.

Adding to 1204112143 its reverse (3412114021), we get a palindrome (4616226164).

The spelling of 1204112143 in words is "one billion, two hundred four million, one hundred twelve thousand, one hundred forty-three".