203123201010323 has 24 divisors (see below), whose sum is σ = 234612517541616. Its totient is φ = 174379731552000.

The previous prime is 203123201010293. The next prime is 203123201010337. The reversal of 203123201010323 is 323010102321302.

It is not a de Polignac number, because 203123201010323 - 2⁴⁶ = 132754456832659 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203123201040323) by changing a digit.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 80468978 + ... + 82954823.

It is an arithmetic number, because the mean of its divisors is an integer number (9775521564234).

Almost surely, 2^{203123201010323} is an apocalyptic number.

203123201010323 is a deficient number, since it is larger than the sum of its proper divisors (31489316531293).

203123201010323 is a wasteful number, since it uses less digits than its factorization.

203123201010323 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 163424163 (or 163424144 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 23.

Adding to 203123201010323 its reverse (323010102321302), we get a palindrome (526133303331625).

The spelling of 203123201010323 in words is "two hundred three trillion, one hundred twenty-three billion, two hundred one million, ten thousand, three hundred twenty-three".