203413410043409 has 2 divisors, whose sum is σ = 203413410043410. Its totient is φ = 203413410043408.

The previous prime is 203413410043381. The next prime is 203413410043511. The reversal of 203413410043409 is 904340014314302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 144082931937025 + 59330478106384 = 12003455^2 + 7702628^2 .

It is a cyclic number.

It is not a de Polignac number, because 203413410043409 - 2²⁰ = 203413408994833 is a prime.

It is not a weakly prime, because it can be changed into another prime (203413410043009) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101706705021704 + 101706705021705.

It is an arithmetic number, because the mean of its divisors is an integer number (101706705021705).

Almost surely, 2^{203413410043409} is an apocalyptic number.

It is an amenable number.

203413410043409 is a deficient number, since it is larger than the sum of its proper divisors (1).

203413410043409 is an equidigital number, since it uses as much as digits as its factorization.

203413410043409 is an evil number, because the sum of its binary digits is even.

The product of its (nonzero) digits is 124416, while the sum is 38.

The spelling of 203413410043409 in words is "two hundred three trillion, four hundred thirteen billion, four hundred ten million, forty-three thousand, four hundred nine".