203311210311122 has 48 divisors (see below), whose sum is σ = 326319347508000. Its totient is φ = 94944630344256.

The previous prime is 203311210311091. The next prime is 203311210311137. The reversal of 203311210311122 is 221113012113302.

It is a happy number.

It is a Harshad number since it is a multiple of its sum of digits (23).

It is an unprimeable number.

It is a pernicious number, because its binary representation contains a prime number (23) of ones.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 144288254 + ... + 145690502.

It is an arithmetic number, because the mean of its divisors is an integer number (6798319739750).

Almost surely, 2^{203311210311122} is an apocalyptic number.

203311210311122 is a deficient number, since it is larger than the sum of its proper divisors (123008137196878).

203311210311122 is a wasteful number, since it uses less digits than its factorization.

203311210311122 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 1405527 (or 1405504 counting only the distinct ones).

The product of its (nonzero) digits is 432, while the sum is 23.

Adding to 203311210311122 its reverse (221113012113302), we get a palindrome (424424222424424).

The spelling of 203311210311122 in words is "two hundred three trillion, three hundred eleven billion, two hundred ten million, three hundred eleven thousand, one hundred twenty-two".