203423331412123 has 4 divisors (see below), whose sum is σ = 203423511295728. Its totient is φ = 203423151528520.

The previous prime is 203423331412109. The next prime is 203423331412153. The reversal of 203423331412123 is 321214133324302.

It is a semiprime because it is the product of two primes.

It is a cyclic number.

It is not a de Polignac number, because 203423331412123 - 2⁹ = 203423331411611 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203423331412153) 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 3 ways as a sum of consecutive naturals, for example, 88234711 + ... + 90510832.

It is an arithmetic number, because the mean of its divisors is an integer number (50855877823932).

Almost surely, 2^{203423331412123} is an apocalyptic number.

203423331412123 is a deficient number, since it is larger than the sum of its proper divisors (179883605).

203423331412123 is a wasteful number, since it uses less digits than its factorization.

203423331412123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 179883604.

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

Adding to 203423331412123 its reverse (321214133324302), we get a palindrome (524637464736425).

The spelling of 203423331412123 in words is "two hundred three trillion, four hundred twenty-three billion, three hundred thirty-one million, four hundred twelve thousand, one hundred twenty-three".