203123401423 has 8 divisors (see below), whose sum is σ = 208083664656. Its totient is φ = 198163425600.

The previous prime is 203123401421. The next prime is 203123401427. The reversal of 203123401423 is 324104321302.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 203123401423 - 2¹ = 203123401421 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (203123401421) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 2314128 + ... + 2400298.

It is an arithmetic number, because the mean of its divisors is an integer number (26010458082).

Almost surely, 2^203123401423 is an apocalyptic number.

203123401423 is a deficient number, since it is larger than the sum of its proper divisors (4960263233).

203123401423 is an equidigital number, since it uses as much as digits as its factorization.

203123401423 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 143705.

The product of its (nonzero) digits is 3456, while the sum is 25.

Adding to 203123401423 its reverse (324104321302), we get a palindrome (527227722725).

The spelling of 203123401423 in words is "two hundred three billion, one hundred twenty-three million, four hundred one thousand, four hundred twenty-three".