203231212300123 has 12 divisors (see below), whose sum is σ = 236482452527112. Its totient is φ = 174146135765280.

The previous prime is 203231212300111. The next prime is 203231212300213. The reversal of 203231212300123 is 321003212132302.

It is not a de Polignac number, because 203231212300123 - 2²⁵ = 203231178745691 is a prime.

It is a Duffinian number.

It is not an unprimeable number, because it can be changed into a prime (203231212300223) by changing a digit.

It is a polite number, since it can be written in 11 ways as a sum of consecutive naturals, for example, 619432018 + ... + 619760023.

It is an arithmetic number, because the mean of its divisors is an integer number (19706871043926).

Almost surely, 2^{203231212300123} is an apocalyptic number.

203231212300123 is a deficient number, since it is larger than the sum of its proper divisors (33251240226989).

203231212300123 is a wasteful number, since it uses less digits than its factorization.

203231212300123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 1239195402 (or 1239195395 counting only the distinct ones).

The product of its (nonzero) digits is 2592, while the sum is 25.

Adding to 203231212300123 its reverse (321003212132302), we get a palindrome (524234424432425).

The spelling of 203231212300123 in words is "two hundred three trillion, two hundred thirty-one billion, two hundred twelve million, three hundred thousand, one hundred twenty-three".