203112321101323 has 4 divisors (see below), whose sum is σ = 203112525964048. Its totient is φ = 203112116238600.

The previous prime is 203112321101251. The next prime is 203112321101363. The reversal of 203112321101323 is 323101123211302.

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 203112321101323 - 2⁹ = 203112321100811 is a prime.

It is a super-2 number, since 2×203112321101323² (a number of 29 digits) contains 22 as substring.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203112321101363) by changing a digit.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 100936911 + ... + 102929512.

It is an arithmetic number, because the mean of its divisors is an integer number (50778131491012).

Almost surely, 2^{203112321101323} is an apocalyptic number.

203112321101323 is a deficient number, since it is larger than the sum of its proper divisors (204862725).

203112321101323 is an equidigital number, since it uses as much as digits as its factorization.

203112321101323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 204862724.

The product of its (nonzero) digits is 1296, while the sum is 25.

Adding to 203112321101323 its reverse (323101123211302), we get a palindrome (526213444312625).

The spelling of 203112321101323 in words is "two hundred three trillion, one hundred twelve billion, three hundred twenty-one million, one hundred one thousand, three hundred twenty-three".