203406135010323 has 16 divisors (see below), whose sum is σ = 310005017675520. Its totient is φ = 116212272669216.

The previous prime is 203406135010297. The next prime is 203406135010339. The reversal of 203406135010323 is 323010531604302.

It is not a de Polignac number, because 203406135010323 - 2⁵ = 203406135010291 is a prime.

It is not an unprimeable number, because it can be changed into a prime (203406135010223) 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, 825060465 + ... + 825306962.

It is an arithmetic number, because the mean of its divisors is an integer number (19375313604720).

Almost surely, 2^{203406135010323} is an apocalyptic number.

203406135010323 is a deficient number, since it is larger than the sum of its proper divisors (106598882665197).

203406135010323 is a wasteful number, since it uses less digits than its factorization.

203406135010323 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1650373306.

The product of its (nonzero) digits is 38880, while the sum is 33.

Adding to 203406135010323 its reverse (323010531604302), we get a palindrome (526416666614625).

The spelling of 203406135010323 in words is "two hundred three trillion, four hundred six billion, one hundred thirty-five million, ten thousand, three hundred twenty-three".