203404412143 has 8 divisors (see below), whose sum is σ = 208371441600. Its totient is φ = 198437665920.

The previous prime is 203404412077. The next prime is 203404412147. The reversal of 203404412143 is 341214404302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203404412143 - 2²¹ = 203402314991 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203404412147) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2573883 + ... + 2651731.

It is an arithmetic number, because the mean of its divisors is an integer number (26046430200).

Almost surely, 2^203404412143 is an apocalyptic number.

203404412143 is a deficient number, since it is larger than the sum of its proper divisors (4967029457).

203404412143 is an equidigital number, since it uses as much as digits as its factorization.

203404412143 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 141617.

The product of its (nonzero) digits is 9216, while the sum is 28.

Adding to 203404412143 its reverse (341214404302), we get a palindrome (544618816445).

The spelling of 203404412143 in words is "two hundred three billion, four hundred four million, four hundred twelve thousand, one hundred forty-three".