203426430361 has 128 divisors (see below), whose sum is σ = 275347537920. Its totient is φ = 145669708800.

The previous prime is 203426430349. The next prime is 203426430367. The reversal of 203426430361 is 163034624302.

It is not a de Polignac number, because 203426430361 - 2⁵ = 203426430329 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203426430367) 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 127 ways as a sum of consecutive naturals, for example, 1463499430 + ... + 1463499568.

It is an arithmetic number, because the mean of its divisors is an integer number (2151152640).

Almost surely, 2^203426430361 is an apocalyptic number.

It is an amenable number.

203426430361 is a deficient number, since it is larger than the sum of its proper divisors (71921107559).

203426430361 is a wasteful number, since it uses less digits than its factorization.

203426430361 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 467.

The product of its (nonzero) digits is 62208, while the sum is 34.

The spelling of 203426430361 in words is "two hundred three billion, four hundred twenty-six million, four hundred thirty thousand, three hundred sixty-one".