203142423349 has 2 divisors, whose sum is σ = 203142423350. Its totient is φ = 203142423348.

The previous prime is 203142423301. The next prime is 203142423359. The reversal of 203142423349 is 943324241302.

It is a strong prime.

It can be written as a sum of positive squares in only one way, i.e., 175408517124 + 27733906225 = 418818^2 + 166535^2 .

It is a cyclic number.

It is not a de Polignac number, because 203142423349 - 2¹⁷ = 203142292277 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203142423359) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101571211674 + 101571211675.

It is an arithmetic number, because the mean of its divisors is an integer number (101571211675).

Almost surely, 2^203142423349 is an apocalyptic number.

It is an amenable number.

203142423349 is a deficient number, since it is larger than the sum of its proper divisors (1).

203142423349 is an equidigital number, since it uses as much as digits as its factorization.

203142423349 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 124416, while the sum is 37.

The spelling of 203142423349 in words is "two hundred three billion, one hundred forty-two million, four hundred twenty-three thousand, three hundred forty-nine".