203311210113123 has 16 divisors (see below), whose sum is σ = 311380185473280. Its totient is φ = 115588099148256.

The previous prime is 203311210113091. The next prime is 203311210113131. The reversal of 203311210113123 is 321311012113302.

It is not a de Polignac number, because 203311210113123 - 2⁵ = 203311210113091 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 203311210113093 and 203311210113102.

It is not an unprimeable number, because it can be changed into a prime (203311210193123) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 24572295853 + ... + 24572304126.

It is an arithmetic number, because the mean of its divisors is an integer number (19461261592080).

Almost surely, 2^{203311210113123} is an apocalyptic number.

203311210113123 is a deficient number, since it is larger than the sum of its proper divisors (108068975360157).

203311210113123 is a wasteful number, since it uses less digits than its factorization.

203311210113123 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 49144600186.

The product of its (nonzero) digits is 648, while the sum is 24.

Adding to 203311210113123 its reverse (321311012113302), we get a palindrome (524622222226425).

The spelling of 203311210113123 in words is "two hundred three trillion, three hundred eleven billion, two hundred ten million, one hundred thirteen thousand, one hundred twenty-three".