203426388023029 has 2 divisors, whose sum is σ = 203426388023030. Its totient is φ = 203426388023028.

The previous prime is 203426388023021. The next prime is 203426388023059. The reversal of 203426388023029 is 920320883624302.

It is a weak prime.

It can be written as a sum of positive squares in only one way, i.e., 201290888040804 + 2135499982225 = 14187702^2 + 1461335^2 .

It is a cyclic number.

It is not a de Polignac number, because 203426388023029 - 2³ = 203426388023021 is a prime.

It is a congruent number.

It is not a weakly prime, because it can be changed into another prime (203426388023021) by changing a digit.

It is a polite number, since it can be written as a sum of consecutive naturals, namely, 101713194011514 + 101713194011515.

It is an arithmetic number, because the mean of its divisors is an integer number (101713194011515).

Almost surely, 2^{203426388023029} is an apocalyptic number.

It is an amenable number.

203426388023029 is a deficient number, since it is larger than the sum of its proper divisors (1).

203426388023029 is an equidigital number, since it uses as much as digits as its factorization.

203426388023029 is an odious number, because the sum of its binary digits is odd.

The product of its (nonzero) digits is 5971968, while the sum is 52.

The spelling of 203426388023029 in words is "two hundred three trillion, four hundred twenty-six billion, three hundred eighty-eight million, twenty-three thousand, twenty-nine".