203112132111123 has 8 divisors (see below), whose sum is σ = 282590792502528. Its totient is φ = 129520779896904.

The previous prime is 203112132111107. The next prime is 203112132111149. The reversal of 203112132111123 is 321111231211302.

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

It is not a de Polignac number, because 203112132111123 - 2⁴ = 203112132111107 is a prime.

It is a super-2 number, since 2×203112132111123² (a number of 29 digits) contains 22 as substring.

It is a junction number, because it is equal to n+sod(n) for n = 203112132111093 and 203112132111102.

It is not an unprimeable number, because it can be changed into a prime (203112132111103) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (29) of ones.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 1471827044215 + ... + 1471827044352.

It is an arithmetic number, because the mean of its divisors is an integer number (35323849062816).

Almost surely, 2^{203112132111123} is an apocalyptic number.

203112132111123 is a gapful number since it is divisible by the number (23) formed by its first and last digit.

203112132111123 is a deficient number, since it is larger than the sum of its proper divisors (79478660391405).

203112132111123 is a wasteful number, since it uses less digits than its factorization.

203112132111123 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 2943654088593.

The product of its (nonzero) digits is 432, while the sum is 24.

Adding to 203112132111123 its reverse (321111231211302), we get a palindrome (524223363322425).

The spelling of 203112132111123 in words is "two hundred three trillion, one hundred twelve billion, one hundred thirty-two million, one hundred eleven thousand, one hundred twenty-three".