203420202143 has 2 divisors, whose sum is σ = 203420202144. Its totient is φ = 203420202142.

The previous prime is 203420202109. The next prime is 203420202163. The reversal of 203420202143 is 341202024302.

It is a strong prime.

It is a cyclic number.

It is a de Polignac number, because none of the positive numbers 2^k-203420202143 is a prime.

It is a Sophie Germain prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203420202163) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101710101071 + 101710101072.

It is an arithmetic number, because the mean of its divisors is an integer number (101710101072).

Almost surely, 2^203420202143 is an apocalyptic number.

203420202143 is a deficient number, since it is larger than the sum of its proper divisors (1).

203420202143 is an equidigital number, since it uses as much as digits as its factorization.

203420202143 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 2304, while the sum is 23.

Adding to 203420202143 its reverse (341202024302), we get a palindrome (544622226445).

The spelling of 203420202143 in words is "two hundred three billion, four hundred twenty million, two hundred two thousand, one hundred forty-three".