203123211302 has 16 divisors (see below), whose sum is σ = 332399918592. Its totient is φ = 92324154120.

The previous prime is 203123211299. The next prime is 203123211311. The reversal of 203123211302 is 203112321302.

203123211302 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (19) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 246803 + ... + 683489.

It is an arithmetic number, because the mean of its divisors is an integer number (20774994912).

Almost surely, 2^203123211302 is an apocalyptic number.

203123211302 is a gapful number since it is divisible by the number (22) formed by its first and last digit.

203123211302 is a deficient number, since it is larger than the sum of its proper divisors (129276707290).

203123211302 is a wasteful number, since it uses less digits than its factorization.

203123211302 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 457843.

The product of its (nonzero) digits is 432, while the sum is 20.

Adding to 203123211302 its reverse (203112321302), we get a palindrome (406235532604).

Subtracting from 203123211302 its reverse (203112321302), we obtain a square (10890000 = 3300²).

The spelling of 203123211302 in words is "two hundred three billion, one hundred twenty-three million, two hundred eleven thousand, three hundred two".