203465356423 has 16 divisors (see below), whose sum is σ = 234020339200. Its totient is φ = 173284901856.

The previous prime is 203465356387. The next prime is 203465356427. The reversal of 203465356423 is 324653564302.

It is a cyclic number.

It is not a de Polignac number, because 203465356423 - 2²⁹ = 202928485511 is a prime.

It is a Duffinian number.

It is a self number, because there is not a number n which added to its sum of digits gives 203465356423.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203465356427) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 921436 + ... + 1120702.

It is an arithmetic number, because the mean of its divisors is an integer number (14626271200).

Almost surely, 2^203465356423 is an apocalyptic number.

203465356423 is a deficient number, since it is larger than the sum of its proper divisors (30554982777).

203465356423 is a wasteful number, since it uses less digits than its factorization.

203465356423 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 200206.

The product of its (nonzero) digits is 1555200, while the sum is 43.

The spelling of 203465356423 in words is "two hundred three billion, four hundred sixty-five million, three hundred fifty-six thousand, four hundred twenty-three".